Anyone had success writing to any tennis players or commentators vv Wimbledon during the tournament?

A book signed by Buzz Aldrin in person. Makes me smile just knowing I own it!

Hi. I've always collected autos as I've always found the hobby interesting but some dealers sell signed items purely as investments for the future. So here's my question - if you had to write to a celeb now in order to sell the autograph in 20years time to make as much money as poss,who would you wr...