Henderson will miss Premier League games against Sheffield United, Chelsea, Fulham and Wolverhampton, as well as the Champions League last-16 second leg.
Liverpool's Premier League title hopes are over and the main target now is to win the Champions League, forward Sadio Mane said.
Salah scored the opening goal against RB Leipzig to help his team secure a 2-0 win and put one foot in the prestigious competition’s quarter-finals.
Liverpool have suffered another injury setback with Brazilian midfielder Fabinho set to miss Saturday's trip to Leicester.
Should City win on Sunday they would move 10 points clear of Liverpool having also played one game fewer.
Klopp believes that his team is not showing the performance that makes them Premier League title contenders.
Mourinho faces a major challenge to keep Tottenham's season on track after a fresh injury to talismanic striker Harry Kane.
Liverpool’s spluttering attack burst back to life to help the champions return to winning ways with a commanding 3-1 victory at Tottenham Hotspur.
Klopp believes the talent new Chelsea manager Thomas Tuchel has to work with is a gift for any manager, but expressed his sympathy with Frank Lampard.
Liverpool fans voted for Salah after his huge contributions with his team in December.
Liverpool suffered a shock 1-0 defeat to lowly Burnley on Thursday, ending their 68 match unbeaten home record in the Premier League.
Manchester United and Liverpool lock horns for the second Sunday in a row this weekend.
United have 36 points from 17 games, three more than second-placed Liverpool before the blockbuster clash at Anfield.
Liverpool are unlikely to sign a central defender in January as cover amid an injury crisis at the Premier League club.
Klopp believes the Premier League must avoid implementing a “circuit-breaker” shutdown to help reduce COVID-19 infections.
Both teams will have to host home games behind closed doors again after the Liverpool City Region was placed into Tier 3 of Britain’s COVID-19 restrictions.
Liverpool continue to adopt a cautious approach with the Spaniard, who suffered a knee injury in the Merseyside derby in October.
The Egyptian winger is having a great season with the Reds as he is leading the league’s top scorer list with 13 goals, which helped Liverpool to top the standings.
Rumors linked the Egyptian winger with a move to Spanish giants, Barcelona, and Real Madrid.
Solskjaer’s side could find themselves in second place and within two points of leaders Liverpool with a win at Leicester City on Saturday.