Antoine Hoang defeated Christopher Heyman 6-3 6-4 in the Greece F5 round of 32 on hard.
Hoang A. took it in straight sets.
Antoine Hoang beat Christopher Heyman 6-3 6-4. Umpiry, "Antoine Hoang vs Christopher Heyman — Greece F5 Round of 32", https://umpiry.com/match/2014-04-07/heyman-vs-hoang-greece-f5-r32?utm_source=cite (as of 7 April 2014).