Defender Jonathan Spector has extended his stay at Birmingham after penning a new two-year deal.
Bastian Schweinsteiger’s Bayern Munich future remains in doubt after Matthias Sammer admitted he could leave the club.
Wigan midfielder Mohamed Diame has a number of offers on the table should he decide to remain in the Premier League next season.
The Senegal midfielder is available on a free transfer after seeing out the final season of his contract at the DW Stadium.
And the 24-year-old is already attracting plenty of interest both "at home and abroad", according to his agent Willie McKay.
"Momo is one of the best Bosmans around this summer and there are a lot of clubs at home and abroad keen on him, but Momo would like to stay in the Premier League and play for an ambitious club," McKay said.
"I have met with several Premier League clubs and we are considering all offers, but we have yet to make a decision on where Momo will be going.
"Momo is disappointed he did not play as much for Wigan in the second half of this season, but he enjoyed his time at Wigan, although he always saw it as a stepping stone to move to a bigger club."