I've got a high value young left mid, he's at an equal skill level to the rest of my 1st team, and he's turned rubbish.

He started the season well enough and is vital to the way I set my team up, but for the last 10 - 15 games in hasn't scored higher than a 5 rating. I've tried dropping him, resting him, giving him happy pills, shouting at him, but nothing seems to have worked. Now I'm trying to sell his sorry arse, as I'm sure his attitude is bring the rest of the team down.

I read somewhere that certain players have a 15% chance of being "trolled" if this is the case, is it a temporary thing or does it last?

So question to experienced players ... when good players turn bad will they get their form back again, or is it best to get rid?

I'm thinking this player just doesn't fit with or doesn't like my tactics, so he plays bad, I'd rather this than some random "troll" thing.