Philipp Marx is a German professional tennis player. Marx competes on the ATP Challenger Tour and the ATP World Tour, both in singles and doubles. He reached his highest ATP singles ranking, No. 300, on April 3, 2006, and his highest ATP doubles ranking, No. 53, on 27 September 2010.

Igor Zelenay is a Slovak professional tennis player. He is a doubles specialist who has won 1 ATP Tour title and finished runner-up at 4 other ATP 250 tournaments. He reached a career-high ranking of World No. 50 in July 2009. His career-high singles ranking is World No. 279, achieved in August 2005.