He is still going strong and could win a few more by the time he retires .
Leander Paes has won 15 Grand Slam doubles titles in all , including 8 in men 's doubles and 7 in mixed doubles .
Leander Paes is still going strong and could win a few more by the time Leander Paes retires .
Leander Paes has won 15 Grand Slam doubles titles in all , including 8 in men 's doubles and 7 in mixed doubles .