Aitor Karanka is hoping the end of season charge towards the finishing line will be boosted by the return of the club's injury victims.Striker Jelle Vossen returned from a head injury to score against Millwall on Tuesday evening while Dani Ayala, who has been sidelined since the Blackpool game , is also on the verge of a return.Long-term absentee Muzzy Carayol is back in Under-21s action after a 12-month lay-off and has scored twice, and Damia, who suffered an ACL injury at Cardiff in September, is also expected to return before the end of the campaign."We are going to arrive at the most important period in the league with everyone fit," said Karanka."I hope Dani Ayala will be with us as soon as possible now, and Damia is three weeks or one month away. Muzzy is also playing games."The main thing is that they're all ready to play and are fit because now is the key."Patrick Bamford was substituted late on during the game against Millwall, but Karanka confirmed the striker is not an injury concern.He said: "It was nothing serious to Patrick and the score was comfortable so I had no doubt about substituting him."