Richard Arnold makes promise over Manchester United rebuild under Erik ten Hag

Richard Arnold has vowed Manchester United will be relentless in their efforts to arrest the team's drastic decline.

United ended a fifth consecutive campaign trophyless and fell from second to sixth when they were recognised as would-be title challengers at the start of the season.

Former manager Ole Gunnar Solskjaer was sacked in November and the club suffered FA Cup fourth round and Champions League round-of-16 eliminations under interim manager Ralf Rangnick.

Read more: Murtough opens up on Ten Hag

United will compete in the Europa League for the fifth time in the last eight seasons in 2022-23 and Rangnick, now a consultant, likened the squad rebuild to 'open heart surgery'.

New manager Erik ten Hag highlighted United's misleading second-place finish last season but supporters are demanding a significant overhaul of a squad that under-performed so wretchedly United matchgoers chanted 'You're not fit to wear the shirt'.

"Suffice to say, we are not happy with where we are in terms of performance on the pitch," Arnold said on the fans' forum. "We understand fans are frustrated and want to see change and improvement. I can assure you that we share that frustration very intensely within the club.

"But we also feel confident that change is coming because of the action being taken to drive long-term success. The appointment of Erik ten Hag was the most visible example of that action, and the most important. We’re pleased to have got that done early and we can't wait for Erik to get started.

"Success won’t be achieved overnight but we are determined to get there, and we will be relentless in our efforts to achieve it. The support of fans will be crucial, and we accept that we have further work to do to strengthen that