Ryan Giggs has warned Manchester United that their Premier League title wait could go on for decades.
The Red Devils last won the top flight in 2013, the year Sir Alex Ferguson called it a day at Old Trafford.
Since the Scot's departure though the club have struggled to challenge for honours.
A second place finish in 2018 is United's best showing since their title success but even then they were 19 points off leaders Manchester City.
Giggs, who won the Premier League on 13 occasions, is concerned that every new arrival, be that in the dugout or on the pitch, is seen as a saviour.
But instead the Welshman referenced Liverpool's gradual improvement under Jurgen Klopp as the blueprint for winning the league.
"Yes, 100 per cent," Giggs told the Greatest Game Podcast when asked if he feels United's title drought could go on for decades.
"It could be 15, 20 years before you know it, especially if [Jurgen] Klopp and [Pep] Guardiola stick around.
"They have got the resources and the players so we have Liverpool to look at, where the last time when they won it in 1990. They thought 'we'll win it again soon.'
"Even Klopp, it took four-and-a-half years for him to win it - it takes a long time.
"You have to think about what Klopp did.
"He improved the team every season or won a trophy like the Champions League and then you saw the improvement so the pressure was off a little bit.
"Every manager and signing [for United] is seen as that 'he will win us the league' and it's not like that."
United finished third last term under Ole Gunnar Solskjaer but have not won a trophy since Jose Mourinho guided them to the Europa League in 2017.
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