Reading pair Sean Morrison and Jordan Obita have both signed new contracts at the Madejski Stadium.
Ipswich defender Aaron Cresswell has signed a two-year extension to his contract.
Manchester City defender Kolo Toure is determined to regain his first-team place, despite conceding that the club wants him out.
The former City captain, who came back from a six-month drugs ban last year, is currently fourth choice behind Joleon Lescott, Vincent Kompany and summer signing Matija Nastasic at the heart of defence.
But he is refusing to call time on his Eastlands career just yet and hopes to persuade boss Roberto Mancini to bring him back in from the cold.
"I want to stay, I want to fight for my place," he told the BBC. "It's difficult, I was a key player. I've done everything but that will not change the manager's decision
"I like City and this season I started every game pre-season. But when the season started I've been kicked out again from the team.
"I fight. My team-mates know, my brother (Yaya, City midfielder) knows. I do my best but the club are showing me the way out at the moment.
"I'm not angry with the manager. If someone doesn't want me then there will be another club that does. I still have this hunger. I take Ryan Giggs (38) and Paul Scholes (37) as an example. What they are doing for Manchester United is incredible. I want to be like them."