Burnley boss Sean Dyche is counting on a fully fit Steven Defour next season.
Dyche is delighted with the determination of the midfielder, who will enter his third year with the club.
"We can only go on evidence, most players we've signed settle in really quickly, as people and professionals," said Dyche.
"Then if that helps to perform, probably it does, if doesn't and they stick with it usually it wins the day.
"Steven Defour is the best example, just talking about that. He had a big shift in his own mind about the first year, he came back for pre-season and was a different character, whole manner, professionalism, the desire."
He also said: "We laid it on for him and he took it on. Even if it doesn't work at first. If you spoke to Steven Defour two Christmases ago, he'd say 'love the group, training's been great, really enjoy being here but can't quite get my head around the football side of things. This summer I get it.' It comes together."