Liverpool midfielder Alex Oxlade-Chamberlain has been ruled out of England's World Cup campaign after the club announced he suffered knee ligament damage on Tuesday.
Oxlade-Chamberlain was carried off on a stretcher with his right knee in a brace midway through the first half of the victory over Roma.
After the match, Reds boss Jurgen Klopp said: "The biggest blow for the mood is the injury of Chamberlain because we lost a fantastic player."
A statement on the club's official website read: "The extent of the injury means Oxlade-Chamberlain is set to miss the remainder of the campaign for Liverpool, as well as the World Cup finals in Russia with England.
"The 24-year-old was assessed by the club's medical team at Melwood on Wednesday morning and no specific timescale is being placed upon his return to action at this stage.
"However, Oxlade-Chamberlain will now begin a rehabilitation programme to enable him to reach full fitness again as soon as possible, returning to action next season."
Oxlade-Chamberlain expressed his devastation at the news.
But he admitted his injury "pales in comparison" to the Irish fan whose condition has been described as critical after being attacked outside Anfield shortly before the Champions League semi-final first leg at home to Roma.
Oxlade Chamberlain wrote in an Instagram post: "Absolutely devastated to have picked up that injury at such a crucial time in the season.
"Gutted I won't be able to play any further part now in our Champions League run for Liverpool, and also the World Cup with England.
"However, this all pales in comparison to how the family of the liverpool fan badly hurt before last nights game must be feeling. My thoughts are with him and his loved ones."
