AFC Ajax could be without defender Zdeněk Grygera for the rest of the season after he suffered a serious knee injury in the Czech Republic's UEFA EURO 2008™ qualifier against Cyprus on Wednesday evening.

Six weeks out
The 26-year-old was forced off the pitch just 12 minutes in, and tests on Thursday revealed that he had torn cartilage in his left knee. Grygera will undergo exploratory surgery at short notice according to Ajax's website, which added: "It is expected he will need six weeks to recover." With five games left in the Eredivisie, second-placed Ajax are five points behind PSV Eindhoven. The final matches of the regular season are on 29 April, but if Ajax do not finish top they will go into the play-offs for European qualifying slots, which Grygera would have a chance of making if he regains fitness quickly.