Question: Which player has played tennis longer, Luke Jensen or Zheng Jie?

Context paragraphs:
Olga Kalyuzhnaya: Olga Kalyuzhnaya ("Ольга Калюжная" ; born 19 December 1982) is a Russian tennis player.  She entered the 2003 Hyderabad Open but lost in the qualifying round finals to Zheng Jie.  In 2002, she played in the main draw of the $140,000 Tashkent Open but retired in round two due to injury.

2014 Connecticut Open – Doubles: Sania Mirza and Zheng Jie were the defending champions, but they decided not to compete together.  Mirza partnered up with Cara Black, but lost in the quarterfinals to Caroline Garcia and Monica Niculescu.  Zheng played alongside Chan Hao-ching, but lost in the first round to Darija Jurak and Megan Moulton-Levy. <br> This is about a Tennis match in 2014.

Yuan Meng: Yuan Meng (born 9 May 1986) () is a former Chinese female professional tennis player.  She is China's fifth-highest ranked women's singles player after Zheng Jie, Li Na, Peng Shuai, and Yan Zi.  Yuan has won four ITF singles titles and one ITF doubles title.

2007 Qatar Telecom German Open – Doubles: Yan Zi and Zheng Jie were the defending champions, but retired due to Zheng's left ankle injury in the second round.

2007 Wimbledon Championships – Women's Doubles: Yan Zi and Zheng Jie were the defending champions but Zheng did not compete in 2007.  Yan partnered Peng Shuai and reached the quarterfinals where they were beaten by Alicia Molik and Mara Santangelo.

Luke Jensen: Jensen attended East Grand Rapids High School, winning the Michigan state singles championship in 1983, and graduating in 1985.

Murphy Jensen: Murphy Jensen (born October 30, 1968) is an American former professional tennis player from Ludington, Michigan, and currently the coach of the Washington Kastles of World TeamTennis.  His elder brother is former professional tennis player Luke Jensen.  Jensen has a son William (born 1999) with actress Robin Givens, whom he dated periodically during the late 1990s.

2006 Qatar Telecom German Open – Doubles: The Doubles Tournament at the 2006 Qatar Telecom German Open took place between May 5 and May 13 on the outdoor clay courts of the Rot-Weiss Tennis Club in Berlin, Germany.  Yan Zi and Zheng Jie won the title, defeating Elena Dementieva and Flavia Pennetta in the final.

Zheng Jie: Zheng Jie (born 5 July 1983) is a Chinese professional tennis player.  Her career-high singles ranking is World No. 15 which she achieved on 18 May 2009.

2011 Mercury Insurance Open – Doubles: Maria Kirilenko and Zheng Jie were the defending champions, but only Zheng chose to participate with Elena Bovina.  They lost in the quarterfinals to Vera Dushevina and Lucie Hradecká. <br>

Supporting paragraphs: Luke Jensen Zheng Jie
Answer: Jensen