#5 Wayne Rooney

It seems strange to include Wayne Rooney on this list but comparing his career at Manchester United to when he left the Red Devils shows the reasons why.
Even though Rooney has always split opinion among football fans and United fans as well, he achieved some very impressive things throughout his career at the Reds, particularly after he was let out of the shadow of Ronaldo and was allowed to become the club's main man.
As well as becoming United's all-time top goalscorer with 253 goals and winning every single major honour in the game, he also collected five Premier League titles.
Admittedly, towards the end of his time of United, specifically his final couple of seasons (2015/16 and 2016/17) it was clear Rooney was in decline as he put on weight and lost the explosive pace he used to have.
Nevertheless, since leaving the Reds, his powers have declined still further. After a solitary season at Everton (where he was still the club's top goalscorer with a paltry return of 11 goals), he is now seeing out his career in the MLS, just as David Beckham, Frank Lampard, and Steven Gerrard did before him.
He could have potentially stayed at United even longer and been a useful asset, given the club's current over-reliance on Romelu Lukaku but his fitness issues also saw him suffer towards the end of his United career.