Barcelona striker Robert Lewandowski admits he's been carrying a back injury.
Lewandowski was speaking after Monday's 0-0 draw with Girona.
"I had a knock against Madrid, but I always want to play," Lewandowski said. "In the second half against Madrid it was complicated.
"I should have asked for a substitution. Yesterday I couldn't walk, but I tried to play without problems. We worked with the physios.
"It's part of football. I always try to be ready for my teammates. The good thing is that in the next game, I will be fine.
"On the pitch, I have to play better, but that kick from Militao left me with a bad body."