Liverpool manager Jurgen Klopp has said Alex Oxlade-Chamberlain is expected to miss most of next season with injury.
The 24-year-old midfielder has not played since injuring a knee during the Champions League semi-final with Roma on 24 April.
The England player missed the World Cup with the injury, which he picked up tackling Roma's Aleksandar Kolarov at Anfield.
Oxlade-Chamberlain moved to Liverpool from Arsenal last summer for £35m.
Klopp said: "It feels like now is an appropriate time to tell people that for Ox, this season will be about focusing on recovery and rehab.
"We have known this from pretty much the day after he got the injury. There has been no change, no setback - it's exactly on the schedule we expected and planned for.
"The new information is that we're now giving more detail publicly. Typical of Ox, he didn't want the news to overshadow the end of the season and, to be quite honest, we thought we could wait and tell people at an appropriate time.
"His surgery - which he had on the day of our second leg in Roma - has been completely successful and his recovery has started superbly well.
"But the truth of the matter is that we are preparing this season knowing he will not be with us on the pitch for competitive matches for the majority of it. If we do see him back this season it will be a bonus."
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