Ernests Gulbis is a Latvian inactive professional tennis player. In 2008, Gulbis won his first ATP Tour doubles title at the U.S. Men's Clay Court Championships, teaming with Rainer Schüttler, and in 2010, he won his first ATP Tour singles title in the Delray Beach, defeating Ivo Karlović in the final. In total, Gulbis has six ATP titles to his name. His best performance at a Grand Slam was reaching the semifinals of the 2014 French Open. He had previously reached the quarterfinals of the 2008 French Open. Gulbis' career-high singles ranking is world No. 10, making him the only male Latvian tennis player ever to be ranked inside the top 10, a feat he achieved in June 2014.

Rainer Schüttler is a German former professional tennis player. Schüttler was the runner-up at the 2003 Australian Open and a semifinalist at the 2008 Wimbledon Championships. He won an Olympic silver medal in doubles at the 2004 Athens Olympics, and achieved a career-high ranking of world No. 5 in April 2004.