Arsenal could be set to be without midfielder Tomas Rosicky for two months after undergoing a knee surgery, according to reports in his native Czech Republic.
The 34-year-old, who made six Premier League appearances for Arsenal last season, recently penned a 12-month contract extension with the north London club.
He played for the Czech national team in a 2-1 defeat away to Iceland in a 2016 Uefa Championship qualifier on 12 June, but has yet to return to training with the Gunners.
“Tomas had an arthroscopic knee surgery on Tuesday,” the player’s agent, Pavel Paska told Idnes.cz and MF Dnes. “Recovery is estimated at four to eight weeks.”
Arsenal manager Arsene Wenger had said in July that Rosicky picked up “a minor injury” while playing for his country against Iceland.
Chairman of the Football Association of Czech Republic, Miroslav Pelt, added: “He’s had some treatment, though not anything big.”
The Gunners are already without fellow midfielder Jack Wilshere through a hairline fracture to his right ankle. Wilshere faces up to seven weeks on the sidelines.
Arsenal are away to Crystal Palace on Sunday and will bid to bounce back from their opening 2-0 home defeat by West Ham United in the English Premier League.