Barcelona manager Ernesto Valverde says Lionel Messi picked up a "small problem" during his side's 2-2 draw with Valencia in La Liga on Saturday.
The captain played all 90 minutes at the Camp Nou but needed treatment on the pitch in the second half, and Valverde offered an update after the match, per Goal's Ben Spratt:
"[Messi] has a small problem," he said. "I don't know exactly what he has. We will have to wait to see what medical staff say. If he's in good shape, he'll play on Wednesday [against Madrid]."
Messi scored twice to rescue a point for Barcelona after they had gone 2-0 down to Valencia.