Williams fires a dangerous delivery across the face of goal, but Hernandez is well-placed to clear before any Athletic forward can get a shot away.
90' +1
D. Brašanac gets yellow.
Brasanac is booked for dissent.
90'
The fourth official puts up his board and indicates there will be four minutes of additional time at the end of this match.
88'
Osasuna are closing in on a valuable victory as they look to take a lead to Bilbao for the second leg.
86'
D. Brašanac enters the game and replaces Moi Gómez.
Pablo Ibáñez enters the game and replaces Aimar Oroz.
Oroz is replaced by Ibanez.
Brasanac comes on for Gomez.
85'
Despite being behind since early in the second half, Athletic have been woefully lacking in creativity and have barely troubled Herrera.
82'
Gorka Guruzeta enters the game and replaces I. Williams.
Guruzeta is on in place of Inaki Williams.
81'
Time is running out on Valverde's side if they are to take a positive result back to San Mames for the second leg.
79'
Nico Williams has made a noticeable difference since coming on and looks a real threat. If Athletic are going to get back into this game, you would expect him to be involved.
Minute
Description
77'
Kike Barja enters the game and replaces A. Ezzalzouli.
Goalscorer Abde is replaced by Barja.
73'
Arrasate responded to that spell of Athletic pressure with a double substitution. Will they make a difference as his team look to see out victory in this first leg?
71'
Rubén García enters the game and replaces E. Ávila.
Kike García enters the game and replaces A. Budimir.
Budimir makes way for Kike Garcia.
Avila is replaced by Ruben Garcia.
70'
Dani Garcia flicks a decent cross from Inaki Williams towards the back post, but it is just out of reach for Nico Williams at the back stick and the ball skims away for a goal-kick.
69'
The visitors have just been able to take up some more dangerous positions in the last couple of minutes as they go in search of an equaliser.
67'
Hernandez makes a vital interception to nick the ball away from substitute Nico Williams before the speedster can threaten the hosts' goal.
65'
Nico Williams enters the game and replaces Muniain.
Muniain is replaced by Nico Williams.
64'
Iñigo Martínez gets yellow.
Martinez is booked for bringing down Budimir.
63'
Muniain swings a corner in, but it a poor delivery yet again and Herrera comfortably claims.
59'
Raúl García enters the game and replaces Álex Berenguer.
Lekue comes on for De Marcos.
Berenguer makes way for Raul Garcia.
58'
Lekue enters the game and replaces De Marcos.
56'
The fractious end to the first half has continued into the second, with challenges flying in from both teams.
54'
Moi Gómez gets yellow.
Gomez receives a yellow card for hauling down Sancet as the visitors looked to counter.
Avila tries to catch Agirrezabala out with an extremely long-range effort, but he gets it horribly wrong and the Athletic goalkeeper easily collects.
52'
A. Budimir gets yellow.
Budimir goes in the book for catching Vivian with a high boot.
51'
Garcia hammers towards goal from distance, though it never looks like troubling Herrera as it flies well over the crossbar.
49'
The match was crying out for some attacking quality, and Abde provided it in abundance with that fine run and finish.
47'
A. Ezzalzouli has scored a goal for Osasuna! Assist by Moi Gómez.
GOAL!!! What a finish! Abde puts Osasuna into the lead with a superb strike. A swift counter ends with the Morocco international driving into the box, before sending a delightful low drive into the bottom right corner. The hosts lead 1-0!
Gomez found Abde, before the wide-man did the rest to give Arrasate's men the lead.
46'
The hosts get us back underway for the second half.
45' +3
HALF-TIME: OSASUNA 0-0 ATHLETIC BILBAO
45' +2
Vivian is momentarily down receiving treatment after getting a boot to the face, but he will be okay to continue.
45'
There will be one minute of additional time at the end of this first half.
43'
Mikel Vesga gets yellow.
Vesga is yellow-carded for cynically dragging back Oroz.
42'
Tempers are starting to fray a little as Sancet and Martinez are involved in a brief confrontation.
40'
Álex Berenguer gets yellow.
Another set-piece goes begging as Agirrezabala comes and claims a poor free-kick.
Bergenguer catches Avila with a loose arm as the two tussle for possession, and the Athletic man receives the first yellow card of the contest.
38'
Berenguer has the ball in a threatening position, but he looks between a shot and a cross and ends up sending the ball flying out for a throw-in.
31'
Vivian is perhaps lucky to avoid a booking after catching Oroz with a stray arm near the touchline.
29'
After an energetic start, the game has really dropped off in tempo with both teams struggling to get into their rhythm.
25'
Yuri drills a low delivery across the face of goal, and Berenguer is inches away from getting a toe to it. Replays show it would have been ruled out for offside anyway.
22'
Berenguer hoists a free-kick into the Osasuna box, but the delivery is poor and easily headed away.
16'
Moncayola fires an ambitious volley towards goal, but it comes off the wrong part of his foot and flies well wide.
11'
The hosts have slightly shaded the opening period, with the visitors yet to record a shot at Herrera's goal.
9'
It has been a lively start here, which is perhaps surprising with so much at stake. There has been no sign of any nerves.
6'
Abde lets fly at goal from range, but it takes a deflection and goes just wide.
5'
Budimir looks to latch onto a throughball, but it just has too much power on it and runs through to the goalkeeper.
3'
Both teams have had early corners as they look to get their noses in front.
1'
The visitors kick us off and we are underway!
Athletic have accumulated just 0.10 xG (expected goals) so far, while Osasuna have managed 0.26. It has been a game of very few clear-cut chances.
Hello and welcome to live coverage of the first leg of the Copa del Rey semi-final between Osasuna and Athletic Bilbao.
The hosts head into this tie bidding to reach their second Copa del Rey final, having finished runners-up in the 2004-05 season. They are enjoying an excellent season so far, sat in eighth in LaLiga to leave them well in range of finishing in the European spots.
The visitors have a much more decorated history in the competition, winning it 23 times, though their last success came all the way back in the 1983-84 campaign. They are ninth in LaLiga, just a point and a place behind their opponents here.
SUBS: Ruben Garcia, Diego Moreno, Nacho Vidal, Pablo Valencia, Pablo Ibanez, Aitor Fernandez, Kike Garcia, Darko Brasanac, Manuel Sanchez, Unai Garcia, Kike Barja.
ATHLETIC BILBAO (4-2-3-1): Julen Agirrezabala; Oscar De Marcos, Dani Vivian, Inigo Martinez, Yuri; Dani Garcia, Mikel Vesga; Alex Berenguer, Oihan Sancet, Iker Muniain; Inaki Williams.
Home head coach Jagoba Arrasate makes five changes from the 3-2 victory over Sevilla at the weekend, as Herrera replaces Fernandez in goal while Avila and Budimir start for Barja and Garcia. Torro and Gomez also come in for Ibanez and Moreno.
The two teams make their way onto the pitch ahead of kick-off.
There is so much at stake for these two sides, particularly for Osasuna due to their poor record in this competition. Ahead of a daunting second leg at San Mames, you would fancy the hosts to be the team looking to force the issue after the break in this first leg.
Thanks for joining us for live coverage of Osasuna's 1-0 victory over Athletic Bilbao in the first leg of their Copa del Rey semi-final.
Osasuna's chances of reaching their first Copa del Rey final since the 2004-05 campaign were boosted by their first-leg victory, but they still have much work to do if they are to reach May's final. The two teams will meet again at San Mames on April 4, when Athletic will have to put in a much better performance if they want to keep their hopes of winning this famous competition for a 24th time alive.
OSASUNA (4-3-3): Sergio Herrera; Jon Moncayola, Aridane Hernandez, David Garcia, Alvaro Juan Cruz Armada; Aimar Oroz, Lucas Torro, Moi Gomez; Ez Abde, Ante Budimir, Chimy Avila.
Commentary
More…