I might be being a bit cynical but Sarr has hardly been injured at all in the time he has been at Palace. Then Liverpool come in with an unacceptable offer but it turns his and his agents heads, He throws a strop, deletes all his Palace stuff on social media, even goes on strike but then back tracks (presumably because he is advised the club will stop paying him) then the window shuts and he has an injury which is difficult to both identify as well as treat (convenient). there is talk he has entered talks over a new contract (which could be just to keep Palace thinking he is committed) but surprise surprise, he's still injured.
Could it be that this persistent groin injury suddenly clears up a few weeks before the transfer window reopens? Now that would be a coincidence.
Those that know me know I rated Sarr higher than any other attacking player last year. I really liked the lad but after one or two things I've been hearing recently I am becoming very sceptical about whether we should pin any hopes on him until/unless its time to play for a move.