John Arne Riise will also be allowed to move on.
"There are always players who tell you they need games, so I don't know what will happen over the last couple of days," said the Dutch manager.
"We've got a few players; Philippe Senderos needs games and would like to start - he isn't - so we will have to wait and see what happens to him because Aaron Hughes is doing well, Fernando did well and Brede [Hangeland] is my captain.
"With John we were very honest about it. He's too good, too experienced and a servant to the club, so if he needs to play I will never tell him he's got to stay because we have Kieran.
"There's an opportunity that one or two of the players could leave the club, then we will do something."
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