Manchester United boss Erik ten Hag must heed Trent Alexander-Arnold's Liverpool FC warning

The relentlessness of the Premier League means success can only be sustained by evolving year on year.

Sir Alex Ferguson knew this best and always adapted his team accordingly in every transfer window. It could be argued that United have failed to do this since.

On paper, last year’s recruits were supposed to transform the team into title challengers, or at least top four certainties. But this season proved that evolution is not defined solely by the calibre of player a manager brings in, but also by the chemistry they have with the existing squad.

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Chelsea were another case in point with former Old Trafford striker Romelu Lukaku. Trying to build on last year’s Champions League success, ultimately the attacker proved more of a hindrance than a help.

Conversely, after winning the title in the 2020/21 season, Manchester City brought in Jack Grealish for £100m and won the league again this campaign. Now they have brought in Erling Haaland to keep the momentum going.

Liverpool brought in Thiago and Luis Diaz in the 18 months after their 2020 maiden Premier League win. They fit into Jurgen Klopp’s mould seamlessly and were consequently on the cusp of a quadruple this season.

They now look set to allow Sadio Mane to leave for Bayern Munich and have already replaced him with Darwin Nunez. Meanwhile, United are no further forward from their last trophy success - the Europa League - five years ago.

Liverpool full-back Trent Alexander-Arnold noted this and how it is vital for clubs at the top to keep progressing or risk falling by the wayside.

Speaking after his side’s FA Cup triumph over Chelsea last month, he said: “Growing up, I