Question: Which tennis player, Kevin Ullyett or Jonathan Marray, competed on the singles tour, reaching world no. 215 in April 2005, but was unable to continue his singles career, in part due to injuries?
Sentence (from "Gisela Dulko"): She is remembered for her ability to upset the big names on the tour, such as Maria Sharapova in the second round of Wimbledon in 2009; and Samantha Stosur in the third round of Roland Garros in 2011.
Relevant evidence: No