Manchester City's Bulgarian winger Martin Petrov must undergo knee surgery next week and faces up to four months on the sidelines, the club said Tuesday.
Petrov, who expects to undergo the op in Spain, will hope to return in time for Bulgaria's World Cup qualifiers against the Republic of Ireland in Dublin on March 28 and then in Sofia against Cyprus on April 1.
Bulgaria currently stand third in their group behind world champions Italy and the Irish.
