Franck Ribery says he will make a decision over his Bayern Munich future by the end of the month.

Ribery, wanted by Chelsea and Real Madrid, is under contract until 2011 and Bayern run the risk of losing him for nothing at the end of next season, but qualification for the quarter-finals should go some way towards convincing him to remain at the Allianz Arena.

"At the end of March or the start of April I should be able to decide," he told Sky TV. "I want to go to the World Cup with a free head, because it is a very important tournament for me.

"What is important is that we are still able to win all competitions that we are in.

"I am very happy to be here at Bayern Munich."

Bayern coach Louis van Gaal added: "If I look at him doing everything to be fit for the game against Fiorentina, then I think he will stay.

"If I then read the newspapers I think he won't stay. It is difficult. If he wants to go we should sell him now, because it brings in money and is good for Bayern."