Postpublished at 108 mins
Barcelona 2-3 Athletic Bilbao
Corner to Barca as Martin Braithwaite has a low cross/shot blocked.
Last-minute Athletic goal forces extra time
Griezmann had scored twice for Barca
Earlier: Inter Milan 2-0 Juventus
Inter beat champions to go top of table
Emlyn Begley and Andrew Aloia
Barcelona 2-3 Athletic Bilbao
Corner to Barca as Martin Braithwaite has a low cross/shot blocked.
Barcelona 2-3 Athletic Bilbao
The last time Athletic beat Real Madrid and Barcelona in successive fixtures was in June 1960 - the Copa del Rey quarters and semis (both 3-0).
Barcelona 2-3 Athletic Bilbao
Athletic get the fourth half under way.
Barcelona 2-3 Athletic Bilbao
Gotta roll that dice. Barcelona bring on forward Francisco Trincao for defender Clement Lenglet.
Athletic replace potential matchwinner Inaki Williams with Jon Morcillo.
Barcelona 2-3 Athletic Bilbao
The ET HT whistle goes and Athletic are 15 minutes away from winning the Spanish Super Cup.
Barcelona 2-3 Athletic Bilbao
Both players are up thankfully after less than a minute.
Barcelona 2-3 Athletic Bilbao
A clash of heads involving Frenkie de Jong and Dani Garcia. The referee immediately blows his whistle and tells the medical team to come on.
Barcelona 2-3 Athletic Bilbao
Athletic are inches away from sealing the game but Unai Nunez can't make proper contact with a cross. If he did that's 4-2.
Barcelona 2-3 Athletic Bilbao
Barca defender Oscar Mingueza commits a foul on the wing and gives an exaggerated reasction of surprise.
Barcelona 2-3 Athletic Bilbao
Inaki Williams is the only player to both score and assist in a game against Barcelona this season.
Barcelona 2-3 Athletic Bilbao
Barca just can't get past this Athletic defence. The Basques are holding firm.
Barcelona 2-3 Athletic Bilbao
Ronald Koeman is making some notes on a sheet of paper. If they hadn't conceded I'd wonder if it was a list of penalty takers.
Barcelona 2-3 Athletic Bilbao
Lionel Messi has had a quiet 100 minutes.
Barcelona 2-3 Athletic Bilbao
The last time Barcelona played a final which went into extra time was the 2016 Copa del Rey. They beat Sevilla 2-0.
Barcelona 2-3 Athletic Bilbao
Ronald Koeman makes a midfield change as creator Riqui Puig replaces destroyer Sergio Busquets.
Barcelona 2-3 Athletic Bilbao
Athletic make a change at the back as Unai Nunez replaces Inigo Martínez.
Inaki Williams
Brilliant from Inaki Williams and Athletic lead for the first time. He gets the ball on the edge of the box and curls a perfect strike into the top corner.
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Barcelona 2-2 Athletic Bilbao
The third half of the game begins.
Barcelona 2-2 Athletic Bilbao
The final whistle goes.
Is this game going to extra time? ✅
Do BBC Sport live text commentators get paid overtime for extra time? ❌