Mikel Vesga had to be substituted in the second half after injuring a muscle in his right medial adductor. He will undergo further tests.
Nico Williams has pain in his left heel.
Yuri Berchiche was forced to leave the game after suffering severe bruising to his right shin.
Squad List: Real Sociedad vs Athletic Club (LaLiga MD8)
First Team
Ernesto Valverde has named a 21-man squad for Saturday's Basque Derby at the Reale Arena
Valverde: "In my opinion, it's the best derby in LaLiga"
First Team
The boss spoke about the great atmosphere at Basque Derby matches where the football always come first
Global TV Guide: Real Sociedad vs Athletic Club (LaLiga MD8)
First Team
Make sure you don't miss Saturday's Basque Derby, no matter where you are
Valverde: “It was a hard-fought match, as we expected"
First Team
The gaffer admitted he "would have liked to have won, but the sending off and the circumstances of the match have had a big impact"
Muniain goes joint second in Athletic appearance rankings
First Team
The current captain moves level with Txetxu Rojo in the club's all time standings/p>
Athletic close to snatching victory against the odds
First Team
The Lions pull off a 2-2 draw despite being a man down for the entire second half
Match Pack: Athletic Club vs Getafe CF (LaLiga MD7)
First Team
The Lions look to extend their unbeaten run with a win against Getafe in this mid-week fixture
Squad List: Athletic Club vs Getafe CF (LaLiga MD7)
First Team
Ernesto Valverde has named a 22-man squad for Wednesday's clash with Getafe CF in Bilbao (19:00 CEST)
Valverde: "I'm expecting a tough, complicated match"
First Team
The gaffer believes "being competitive and robust" will be key to the outcome of Wednesday's game
Practical Information: Athletic Club vs Getafe CF
First Team
Relevant information for anyone attending Athletic vs Getafe CF at San Mames on Wednesday night (19:00 CEST)