8. Ruud van Nistelrooy
The Dutch goal machine arrived at Old Trafford in 2001 for a staggering €28.50m from PSV Eindhoven. Despite initial doubts, he quickly proved everyone wrong by firing in the goals.
Van Nistelrooy scored several match-winners during his Manchester United career. Only once did he fail to hit the 20-goal mark during an injury-plagued 2004/05 campaign.
Overall, Ruud scored 95 goals in just 150 appearances before leaving for Real Madrid in the summer of 2006.