Manchester United kept their place at the top of the Premier League table with a goalless draw at defending champions Liverpool, as goalkeeper Alisson's heroics denied them a victory at Anfield.
Liverpool enjoyed much of the first-half possession and created several chances, including Andy Robertson's half-volley over the crossbar and Roberto Firmino's tame effort into the hands of David De Gea.
Man Utd came close to breaking the deadlock with their only shot of the opening period, Bruno Fernandes' free-kick flying inches wide.
After the break, Harry Maguire denied Firmino a tap-in before Mohamed Salah's shot was off target.
Alisson then kept out Fernandes with a fine reaction save, before superbly denying Paul Pogba's close-range strike late on, either side of Thiago forcing De Gea to palm his long-range shot wide.
A 12-match unbeaten run takes Man Utd to 37 points, two more than second-placed Leicester City.
Liverpool are three points behind Ole Gunnar Solskjaer's team in fourth.
See: Liverpool report | Man Utd report
Next fixtures
Liverpool: 21 Jan v Burnley (H)
Man Utd: 20 Jan v Fulham (A)
Match officials
Referee: Paul Tierney. Assistants: Lee Betts, Constantine Hatzidakis. Fourth official: Craig Pawson. VAR: Stuart Attwell. Assistant VAR: Stuart Burt.
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