Liverpool are sweating over the fitness of Mo Salah after the forward was spotted in a protective boot during an Egypt training session.
He has already been ruled out of two games for his country against Kenya and Comoros.
But now there could be bigger fears that he will miss some of Liverpool's upcoming Premier League games.
Salah has been carrying an ankle problem since early October.
The 27-year-old has been regularly draining fluid from his ankle since being caught by Hamza Choudhury during Liverpool’s 2-1 win over Leicester on October 5.
The winger worked on a personal programme leading up to Sunday’s crunch clash at Anfield.
But the same part of Salah’s ankle received a heavy knock from City’s Fernandinho.
Salah was subbed off in the 87th minute of the Reds' 3-1 win against their title rivals.
He insisted on linking up with his international team-mates after the game but won't feature in their next two games.
And it could be a double injury blow for Jurgen Klopp and his Premier League leaders.
While the three points from Sunday's game moved the Reds EIGHT points clear, Andy Robertson joined Salah in the medical room
SunSport reported that Robertson will play not part in Scotland’s Euro 2020 qualifiers against Kazakhstan and Cyprus after also needing treatment for a swollen ankle.
Klopp now faces an anxious wait to discover if the key duo will be fit for the next Premier League clash with Crystal Palace in two weeks’ time.