Nassau, Bahamas - 
Mark Knowles may well have retired from the professional tennis circuit
but that's certainly not true in any other area of his life - his family
and his Celebrity Tennis Invitational coming up December 6th-9th.

Very
recently, as of October 16th, he was invited to participate in the 20th
anniversary edition of Mylan WTT Smash Hits presented by Geico pitting
Team Elton against Team Billie-Jean where the event secured $1m for the
Elton John AIDS Foundation with part proceeds going to the Pittsburgh
AIDS Task Force.  Mark teamed up with his former tennis academy
room-mate...