Only Cristiano Ronaldo had 'higher standards' than Ryan Giggs at Manchester United, leading Mick Clegg to believe the forward is on course to match the Wales icon and play into his 40's.
The 35-year-old forward is determined to play at the highest level for another five years, with his notoriously regimented lifestyle keeping him in incredible shape.
Giggs retired in 2014 after 672 games for the Old Trafford side, with the winger's discipline the key to extending his career after making his debut back in 1991.
Cristiano Ronaldo is plotting to stay at the highest level until he is at least 40-years-old
Ryan Giggs, who played alongside the forward at Manchester United, played until he was 40
Former United fitness coach Mick Clegg believes only Ronaldo can surpass Giggs' longevity
Clegg worked as a fitness coach for United under Sir Alex Ferguson, leaving him well-placed to predict how long Ronaldo will continue terrorising defences.