Leeds trio Davide Somma, Paddy Kisnorbo and Robbie Rogers are hoping to play their way back into manager Neil Warnock's promotion plans during pre-season following long-term injury.
Striker Somma had another knee operation in March after missing the season with cruciate ligament damage, injury-plagued Australian defender Kisnorbo has been sidelined since January with a similar problem and USA international Rogers has had surgery on the ankle he injured last month.
When asked about Somma, Warnock said: "I've not seen a lot of him, but [assistant manager] Mick Jones has and he loves him does Mick. You just don't know when you've had injuries like that though do you?
"Kisnorbo is the same. I had him at Palace and he had a trial with us for a week and a game and did quite well and then Leeds offered him a contract and I said 'you should take it, it's a great club'. He's a lovely lad Paddy.
"So they'll all be working hard, [Robbie] Rogers as well. He can't last more than 20 minutes without getting a major injury! I feel sorry for the lad.
"But they're all going to be fit pre-season. Paddy's determined to be fit and Rogers and Somma should all be fit to give it a go, but when they've been out the length of time they have it's difficult to project whether they can sustain the top level of Championship football and I'll have to reserve judgment on that unfortunately."