But when five-year-old Jack Marshall, who has been diagnosed with a brain tumour, visited Manchester United's training ground he only had eyes for one player and said: 'I'd like to kiss you, Wayne. I think you are the best footballer in the world.'
Sealed with a kiss: Wayne Rooney was among the United stars who spent time with Jack
The trip had been organised by Rio Ferdinand, who also spent time with Jack and his family. Jack's mum, Tracey, and his father, Craig, published the pictures on their Twitter account.
The acceptable face of football: Rio Ferdinand organised the special day for Jack and his family
For more details go to www.jacksfund.co.uk EXCLUSIVE: As flashy footwear threatens to kill off traditional black. clubs give colour the bootHow the Dickens did Schalke do it? Germany's version of Man City are the next threat to United's Euro questWho needs Wembley? Sportsmail looks at classic semi-finals played all over England City are hardly our biggest rivals, snipes Scholes ahead of semi-final showdown
Explore more:People: Wayne Rooney, Rio Ferdinand Places: Manchester