The Ghana forward played on Monday for his country but made it home to help Athletic vanquish the Spanish champions and pile more pressure on their coach Xavi Hernandez. Athletic struck inside the first minute through Gorka Guruzeta, but Barcelona turned the game around with goals from Robert Lewandowski and 16-year-old starlet Lamine Yamal.
Oihan Sancet netted early in the second half to take the game to extra-time and then teed up substitute Inaki Williams to put the Basques ahead. His brother Nico Williams added the finishing touch late on to complete 4-2 win, a superb night for the hosts, and a miserable one for Barca, despite a battling performance.
"There was a lack of concentration, individual errors," admitted Xavi. "It's a game of errors and we are not minimising them." The coach said he was calm despite the defeat and had bigger fish to fry.