And who know, did Mark Hilton (who beat Costa) officially finish career in 2006? he has played 2 R1 of Futeres in doubles this year after 6 years of absence.
I have another answer for question №8!
Which was the answer you had?
Titles: 2011: Recife CH, Johannesburg CH, Mons CH, Geneva CH; 2010: Aachen CH, 2009: St. Remy CH, 2008 US Open
Titles: Paris-Bercy 2013, Gstaad 2012, Zagreb 2011, Casablanca 2010, Basel 2008, Vienna 2007
2008 Olympic Bronze Medalist
Roger Federer Pete Sampras Tim Henman