"When the championship finishes, I'll think about my future," Rivaldo told the Kathimerini daily.

"I'll stay until the summer to win titles, and then we'll see."

Greek league leaders Olympiakos released a statement denying press reports that Rivaldo was not happy with team coach Dusan Bajevic who substituted Rivaldo at halftime of Sunday's league match against Aris Salonika, which Olympiakos won 2-1 at home.

The Brazilian signed a two-year contract with Olympiakos during the summer with an option for an additionalal 12 months on an annual salary of 1.8 million euros (2.3 million dollars).