Dallas has worked immensly hard for his country tonight and his reward is a short rest, on comes Matthew Lund.
85'
K. Lafferty enters the game and replaces C. Washington.
Now another goalscorer is brought off as Washington leaves the field and talisman Kyle Lafferty is now into the action.
84'
After a long-ball over the top, Jarstein charges out of his goal and his clearance is awful. McGinn is the first man on the scene but his attempted lob lands straight into the goalkeeper's hands. Norway then put McGovern under pressure but he is on hand to punch clear.
80'
N. McGinn enters the game and replaces J. Ward.
The crowd rise from their seats to clap as Ward leaves the field as Niall McGinn enters the field of play.
79'
Norway continue to try their luck and a cross from the left finds King but the Bournemouth man doesn't get any power on his header and McGovern gathers.
77'
Nordtveit hits a free-kick from 25 yards out and in all fairness that is a cracking effort. He keeps it low and hard but McGovern does enough to steer it around the post. The resulting corner sees Northern Ireland win a free-kick.
75'
S. Berge enters the game and replaces S. Johansen.
Substitution Stefan Marius Johansen Sander Berge
74'
The game has started to open up and Diamonde is the latest man to have a go, the Norway forward can only head into the hands of McGovern though.
72'
In response Northern Ireland charge forward and Washington against looks full of energy, but his powerful drive is blocked for a corner. Brunt lofts the ball to the back post and Davis has a go after a clearance but the danger is cleared.
Minute
Description
71'
Norway finally create a half chance as Dæhli looks to play in Mohamed Elyounoussi at the far post but there's just too much power on that and the ball sails behind for a goal-kick.
67'
A good team move from the edge of their own box sees Northern Ireland create a chance but Ward is too greedy and he shoots when the pass was on. The scoreline remains 2-0.
66'
Northern Ireland themselves may need to make a change, with the pace of the game yet to lift. Norway have looked poor throughout the game but the home side could put this game to bed if they wanted.
63'
A. Diomande enters the game and replaces A. Søderlund.
Søderlund is brought off for Adama Diomande as the Hull City man looks to make a difference up front.
59'
Chants of Green Army ring around Windsor Park as the home fans seem to notice the drop in tempo.
56'
Norway's display is summed up by midfielder Stefan Johansen as he latches onto the loose ball in the middle of midfield and suddenly decides to volley it with his weaker foot - the outcome is a throw-in.
55'
Get the impression that O'Neill is happy to see this game out and get the job done. His team are taking no chances at the minute and they remain 2-0 up.
53'
M. Møller Dæhli enters the game and replaces T. Elyounoussi.
Tarik Elyounoussi has been very quiet this evening and he is now replaced by Mats Møller Dæhli.
49'
Both Gustav Valsvik and Even Hovland get in each others way and they are forced to concede a corner. Brunt produces a teasing cross but Norway clear at the last second.
47'
Nordtveit chucks in another long throw-in and the home defence fail to clear as King flicks the ball around the box but as he shoots the pressure comes and the danger is cleared.
46'
Back underway here as Davis starts the second-half.
45'
Two minutes of stoppage time signalled.
44'
H. Nordtveit gets yellow.
Håvard Nordtveit tries to take that free-kick but is booked for not following the referee's instructions. He eventually tries again but a free-kick is given to the home side.
43'
S. Dallas gets yellow.
Stuart Dallas is shown a yellow card for a lunging tackle and a free-kick is given in a dangerous area.
42'
After scoring 10 minutes ago, Washington is full of confidence and he shows his selfish side by shooting when 20 yards out. Unfortunately his effort is blocked and Norway are back in posession.
39'
Northern Ireland pile bodies forward for another attack but this chance is wasted as Craig Cathcart's ball in is beyond everyone and a goal-kick is given.
37'
Approaching the half-time interval and Northern Ireland are two-nil up without playing at their best. Two solid finishes have given them total control so far.
33'
C. Washington has scored a goal for Northern Ireland! Assist by S. Davis.
A quality through-ball from Davis helps Washington tap the ball home.
GOAAALLLLL Northern Ireland 2-0 Norway - This time it is Conor Washington who gets himself on the scoresheet. Davis is left in acres of space in the middle of midfield and he plays Washington in through the middle and the striker nutmegs Jarstein to score.
29'
Norway seem to notice McAuley's struggles and play the ball towards him but he still clears on one leg.
28'
McAuley is in the wars again and is now holding his right leg and hobbling around. He continues to scream into the air - possible sign he is struggling.
27'
NORWAY HIT THE CROSSBAR - Sensational strike from Alexander Soderlund deserves better but the scoreline remans at 1-0. King's presence caused problems and the loose ball fell to Soderlund on the turn but he can't direct it into the top corner.
26'
Ward plays a delightful ball down the right wing for Conor Washington and the Queens Park Rangers man stays onside and fires in a good ball but Norway clear at the last second.
23'
The game has quitened down now but Norway have just registered their first effort on target as King tries to outfox Michael McGovern with a shot from the outside of his boot but it's saved comfortably.
19'
Good move down the left for Northern Ireland sees Davis and Dallas work a one-two but the latter can only curl his cross into the hands of Norway goalkeeper Rune Jarstein.
18'
Still very early days for Norway but they've started very slowly here and are struggling to get the ball down. King has looked a threat with his power but the back Northern Ireland back four have dealt with him so far.
17'
Plenty of applause for midfielder Steven Davis but the Southampton man cannot direct his shot on target. The former Rangers man rushes his effort before firing the ball into the stands.
13'
Leeds United star Stuart Dallas does well to find a pocket of space and he curls in a ball to the far post but Conor McLaughlin is unable to get a touch and a goal-kick is given.
12'
McAuley now makes his way back onto the field after receiving treatment as the home crowd continue to sing proudly. Michael O'Neill will be delighted with this start.
9'
McAuley now down after landing awkwardly while jumping for a header.
5'
Break in play now as Joshua King goes down in the centre-circle after colliding with Gareth McAuley but after a word with referee Huseyin Gocek he is back on his feet and the game resumes.
4'
That early goal has left Norway stunned - Largerback looks furious on the touchline and his reign has got off to the worst possible start.
2'
J. Ward has scored a goal for Northern Ireland! Assist by C. Brunt.
West Brom winger Chris Brunt picks up the assist after a pinpoint cross.
WHAT A START - Northern Ireland 1-0 Norway - Jamie Ward opens the scoring after picking up the ball up on the edge of the six-yard box and he spins before curling the ball into the far corner. Fine finish from the Nottingham Forest man!
1'
We're underway here as Norway kick the game off at Windsor Park.
Well a warm welcome along to our live text commentary of this 2018 World Cup qualifier between Northern Ireland and Norway from Windsor Park.
This Group C match promises to be a close encounter with Northern Ireland looking to continue their strong recent run, while Norway have a point to prove after a poor start so far. Michael O'Neill's men have won two of their last five games in all competitions but they come into this contest on the back of a 3-0 friendly defeat to Croatia.
Tonight's team news coming up...
As for Norway, they've been on a torrid run of late after four defeats in their last five matches. Their last game in November was a 2-1 defeat to Czech Republic and that result saw them drop down to fifth in the group at the moment. However, former Iceland coach Lars Largerback is now at the helm after being handed the reigns in February. His appointment could prove the turning point for Norway and tonight's game could be a close affair.
Northern Ireland Starting XI (4-5-1): McGovern, C McLaughlin, Evans, McAuley, Cathcart, Ward, Brunt, Davis, Norwood, Dallas, Washington.
Northern Ireland Subs: R McLaughlin, Mannus, Lund, Hodson, Boyce, Carroll, Flanagan, McGinn, K Lafferty, Paton, D Lafferty.
Norway Starting XI (4-2-3-1): Jarstein, Skjelvik, Elabdellaoui, Valsvik, Hovland, Nordtveit, Johansen, M Elyounoussi, King, T Elyounoussi, Soderlund.
Norway Subs: Berget, Diomande, Berisha, Konradsen, Nyland, F Berge, Svensson, Daehli, S Berge, Hedenstad, Reginiussen, Hansen.
From the November defeat to Croatia, only Gareth McAuley, Jonny Evans, Chris Brunt, and Oliver Norwood start tonight as O'Neill looks to get the job done.
For Norway, Rune Jarstein, Omar Elabdellaoui, Even Hovland, Stefan Johansen and Joshua King all start like they did against the Czech Republic but Lagerback has made a number of changes as he looks for an immediate impact.
The majority of the players have completed their warm-ups and are now back in the dressing rooms so kick-off fast approaching at Windsor Park.
HALF-TIME - Northern Ireland 2-0 Norway.
Ward's early goal allowed the home side to kick on and it was the perfect start. They continued to work hard and a moment of class from Davis then teed up Washington. They've played better at Windsor Park but Norway have made some crucial errors and trail as a result.
Northern Ireland will probably come out sharper in the second-half after a talk from O'Neill, while Norway need to dig deep to make a game of it. Second-half action coming up soon!
FULL-TIME - Northern Ireland 2-0 Norway.
Cheers ring out as the whistle sounds then after a very comfortable night for Michael O'Neill's men. Goals from Ward and Washington proved the difference but in all fairness they were not given a game at times. Towards the end of the contest Norway did show some pride but Lagerback as his work cut out with his new role.
Tonight's result sees Northern Ireland remain in second in the group, five points behind Germany. As for Norway they continue to sit second-bottom with just three points. Once again thanks for joining us tonight folks, goodbye!
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