Stefan Koubek is a retired tennis player from Austria. Koubek played left-handed with a double-handed backhand. His idol when growing up was Thomas Muster. Koubek won three titles, two of which came on hardcourts; despite this, he said his favorite surface was clay.

Sébastien René Grosjean is a French former professional tennis player. Grosjean reached the semifinals at the 2001 Australian and French Opens, and at Wimbledon in 2003 and 2004. He finished eight consecutive seasons ranked in the top 30 (1999–2006), peaking at world No. 4 in October 2002. Grosjean retired from professional tennis in May 2010.