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 "Meredith McGrath"): The pinnacle of her career came in reaching the singles semi-finals and doubles finals at the 1996 Wimbledon Championships.
Relevant evidence: No