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?

<P0-S0> Meredith McGrath (born April 28, 1971) is a former professional tennis player. <P0-S1>  She was born in Midland, Michigan, USA and made her debut on the Women's Tennis Association tour in 1988. <P0-S2>  In her eight-year professional career Meredith achieved career-high world rankings of #18 in singles and #4 in doubles. <P0-S3>  She notched victories over such players as Martina Navratilova, Martina Hingis, Anna Kournikova, Jana Novotna, Arantxa Sanchez Vicario, and Gigi Fernandez. <P0-S4>  The pinnacle of her career came in reaching the singles semi-finals and doubles finals at the 1996 Wimbledon Championships. <P0-S5>  In the singles she defeated Mana Endo, Amanda Coetzer, Nancy Feber, Katarína Studeníková and Mary Joe Fernandez before losing to Arantxa Sánchez Vicario. <P0-S6>  An injury the week prior to the 1996 Wimbledon Championships eventually ended her career. <P0-S7>  Meredith won the 1995 U.S. Open Mixed Doubles Championship (she was runner-up in 1989) and was the runner-up in the 1994 Australian Open Doubles Championship. <P0-S8>  Meredith won three WTA singles titles: Oklahoma City and Eastbourne in 1994 and Birmingham in 1996, 25 doubles titles. <P0-S9>  She retired with a 140–83 record in singles and a 189–40 record in doubles. <P0-S10>  Meredith was recognized by Tennis Magazine as the WTA Comeback Player of the Year as she overcame near career-ending injuries to having her most successful competitive season in 1996. <P0-S11>  In 1994 she received the WTA Tour Comeback Player of the Year. <SEP> <P1-S0> Kevin Ullyett (born 23 May 1972 in Salisbury, now Harare) is a former professional tennis player from Zimbabwe. <P1-S1>  His primary success on the tour was in men's doubles. <SEP> <P2-S0> Jonathan "Jonny" Marray (born 10 March 1981) is a British tennis player and a Wimbledon Men's Doubles champion. <P2-S1>  Marray is a former top 20 doubles player, reaching a career high of world no. 15 in January 2013, mainly due to more regular appearances on the ATP World Tour, following his victory at Wimbledon 2012. <P2-S2>  He has also 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. <SEP> <P3-S0> Thomas Mario Haas (] ; born 3 April 1978) is a German professional tennis player. <P3-S1>  He has competed on the ATP Tour since 1996. <P3-S2>  After breaking into the world top 100 in 1997, and reaching a career-high singles ranking of World No. 2 in May 2002, Haas's career was interrupted by injuries: he has twice dropped out of the world rankings due to being unable to play for twelve months. <P3-S3>  His first period of injury saw him miss the whole of the 2003 season, and he did not return to the world's top 10 until 2007. <P3-S4>  He also missed over a year's tennis between February 2010 and June 2011, but has since returned to play on the tour. <P3-S5>  He returned to World No. 11 in 2013 after reaching the quarterfinals at the French Open for the first time in his career.