Liverpool lived up to their billing as the biggest threat to Manchester City retaining the Premier League title as both sides shone on the opening weekend of the season.

So often outgunned by the oil wealth of Abu Dhabi backed City or commercial giants Manchester United in recent years, Liverpool were the biggest spenders from the world’s richest league this summer with a reported £170 million splurge in the transfer market.

The first return on that investment came in Sunday’s 4-0 thrashing of a limited West Ham that even Liverpool manager Jurgen Klopp admitted “are not the Uniteds or Citys.”

City showed just what a task overturning a 25-point deficit last season will be for Liverpool in outclassing Arsenal in a 2-0 win at the Emirates despite a far more disrupted preparation for the campaign due to the World Cup commitments of most of their squad.

On the contrary, Liverpool have benefited from Mohamed Salah and Sadio Mane’s early exits in Russia with Egypt and Senegal as they returned in time to join the club’s pre-season tour of the United States.

Salah started where he left off from an incredible 44-goal debut campaign at Anfield by opening the scoring before Mane struck twice and Daniel Sturridge added a late fourth.

Keita impresses

Klopp conceded it had been impossible to ignore the excitement and expectation among the club’s fans that a near three-decade wait to win the league could come to an end in May.

That hype is because Liverpool have built from a position of strength. After reaching the Champions League final last season, key areas of the team have been bolstered.

Midfielder Naby Keita was a bundle of energy and the star performer of the new boys that showed why Liverpool were willing to shell out £52.75 million and wait a year for the Guinean after agreeing a deal with Leipzig last summer. “You can only imagine how good he’s going to be with more time,” said Liverpool midfielder James Milner.

Finding the net is nothing new for Klopp on opening day. His side scored four at Arsenal in 2016 and three at Watford last season, but also conceded three on both occasions. As he was quick to point out, the clean sheet was just as pleasing as his side’s attacking play.

Goalkeeper Alisson Becker, signed for £65 million from Roma, was rarely troubled, but looked assured in starting attacks from the back, while Virgil van Dijk was imperious in sniffing out any sense of danger.