Liverpool moved 19 points clear at the top of the Premier League with a routine win that intensified the pressure on West Ham at the bottom of the table.
Mohamed Salah’s first-half penalty and Alex Oxlade-Chamberlain’s composed effort after the break maintained the Reds’ relentless march towards a first top-flight title since 1990.
The result leaves the Hammers in 17th and above 18th-placed Bournemouth, and Watford in 19th, on goal difference.