Karl-Heinz Rummenigge has dismissed suggestions Arjen Robben could leave Bayern Munich and expects the winger to sign a new contract.
Robben's future at the Allianz Arena had appeared to be uncertain following a recent bust-up with team-mate Franck Ribery during the UEFA Champions League tie with Real Madrid.
The Netherlands international admitted earlier this week that he is prepared to reconsider his future amid reports that contract talks had broken down.
However, Bayern's chief executive officer Rummenigge believes an agreement is close and that no key players will be leaving the Champions League finalists this summer.
Rummenigge told Bild: "I guarantee that no stars will leave. The agreement [with Robben] is as good as signed.
"Arjen will stay at Bayern in the long term."
Meanwhile, ahead of the Champions League final against Chelsea later this month, Bayern defender Jerome Boateng insists the Bundesliga is as strong as the Premier League.
Boateng has played in both leagues, having spent last season with Manchester City before returning home to Germany with Bayern at the start of this campaign.
He has previously claimed that England has the stronger league but told Bild: "That's not true anymore. That statement was some time ago.
"The Premier League still has more money but both sports leagues are on a par."