my player has become a shit?

in today's match my second strongest forward get wrong at least 5 easy goal, and two kicks off, always sending the ball into the stands ( he is a scepialist in kicks off). It has the moral up and the fhisical condition at most but in this last two matches he gets all wrong. What should i do?

Sell him, it's just some players are useless and don't perform well

it hapens the same to me but with all team, and I have a top team for level 5, with 47,7 quality

in my opinion height-weight = 105 (ideal)
>105 best
<105-103 good
<103 bad
:D