Middlesbrough have said Fabio Rochemback will not be offered a new contract. The Brazilian will follow Gaizka Mendieta and Dong Gook Lee, who have both been released, out of the Riverside when his three-year contract runs out on June 30. Middlesbrough had an option to extend Rochemback's deal by another two years but Gareth Southgate has decided to let him go.

"We both feel that the time is right for Fabio to have a fresh challenge," Southgate said. "He is a talented footballer and I think he's just had his best season for us, while it was fitting that he should bow out against Manchester City on Sunday with probably his best performance in a Middlesbrough shirt."

The 26-year-old joined the club from Barcelona in 2005 and played 91 games, signing off in style by scoring a long-range free-kick in Sunday's 8-1 victory over City.

Rochemback, who scored seven times for Middlesbrough, played a major role in helping the club reach the 2006 Uefa Cup final, a year after appearing in the final during a loan spell with Sporting Lisbon. Southgate, however, is still hopeful of persuading goalkeeper Mark Schwarzer to sign a new contract. The 35-year-old Australian joined the club from Bradford City in a £1.5 million move in February 1997 and has played nearly 450 games for the club.

His deal runs out this summer and he has so far refused to sign an extension, prompting reports of interest from a host of European clubs. "I'd like him to stay," Southgate said. "His experience is important but he has real drive and determination that is still increasing.

"He is the one in our dressing room that can truly say he has played at the highest level - in World Cups, in Europe, in cup finals and so on. We have to negotiate and see where we go, but players have to want to stay here and we have to want to keep them. Mark has been here a long time so he has to decide if he needs a fresh challenge, whether what we are trying to do is going to excite him, whether he feels he is going to be appreciated here."

Southgate also confirmed that Tom Craddock and Tony McMahon will be offered one-year extensions to their current deals, which run out this summer.