Liverpool boss Jurgen Klopp is unsure if he pulled his hamstring at the end of their 4-3 win against Tottenham.
Klopp injured himself celebrating Diogo Jota's 94th minute winner.
He later said: "I'm not sure if it's the hamstring it could be the adductor but I got punished.
"Little sins immediately. I turned around for the celebration because the fourth official got nothing wrong the whole time. I didn't say anything bad, I gave a look which is bad enough. The hamstring or whatever the muscle gave up in that moment.
"That's fair. Apart from that, all okay."