Question: Both Phil Dent and John Lloyd were in which profession?

full_context: Document 1: Sue Barker: Susan Barker, OBE (born 19 April 1956 in Paignton, Devon) is an English television presenter and former professional tennis player. During her tennis career, she won eleven WTA Tour singles titles, including one Grand Slam singles title at the 1976 French Open. She reached a career-high singles ranking of World No. 3. She is now one of the main sports presenters at the BBC, most notably fronting the corporation’s coverage of Wimbledon and A Question of Sport.
Document 2: 1976 Australian Open – Men's Doubles: John Alexander and Phil Dent were the defending champions.
Document 3: Steve Davis: Steve Davis, {'1': ", '2': ", '3': ", '4': "} (born 22 August 1957) is an English retired professional snooker player from Plumstead, London. Known for dominating the sport during the 1980s, when he won the World Championship six times and was ranked world number one for seven consecutive seasons, he is remembered particularly for contesting the 1985 World Championship final with Dennis Taylor, the black-ball conclusion of which attracted a record 18.5 million British viewers. He is a well known public figure and is generally viewed by his peers as one of the greatest players of all time. Until his retirement in 2016, Davis combined his ongoing playing career with his role as a television analyst and commentator for the BBC's snooker coverage, alongside being a DJ of electronic music on local radio station Phoenix FM and at the Bloc Weekend music festival.
Document 4: Tony Roche: Anthony Dalton Roche, AO MBE (born 17 May 1945) is a former professional Australian tennis player, native of Tarcutta. He played junior tennis in the New South Wales regional city of Wagga Wagga. He won one Grand Slam singles title and thirteen Grand Slam doubles titles, and was ranked as high as World No. 2 by Lance Tingay of "The Daily Telegraph" in 1969. He also coached multi-Grand Slam winning World No. 1s, Ivan Lendl, Patrick Rafter, Roger Federer, Lleyton Hewitt and former World No. 4, Jelena Dokic.
Document 5: Larry Lloyd: Laurence Valentine Lloyd (born 6 October 1948) is a retired footballer and former league manager, a burly and tough central defender who won honours for both Bill Shankly's Liverpool and Brian Clough's Nottingham Forest, both highly successful sides of the 1970s.
Document 6: Jamie Murray career statistics: Jamie Murray is a professional tennis player who is the current British number one doubles player. He has reached eight grand slam finals in total: (4 Doubles, 4 Mixed), he has won the mixed doubles at the 2007 Wimbledon Championships, 2017 Wimbledon Championships and 2017 US Open, and the men's doubles at the 2016 Australian Open and 2016 US Open, and has finished as runner-up in the men's doubles tournament at the 2015 Wimbledon Championships and 2015 US Open and in mixed doubles at the 2008 US Open. Murray has been ranked as high as World No. 1 in the ATP doubles rankings, and was the first Britain to be ranked as world number one since the introduction of computerised world rankings in the 1970s. He is currently ranked at world No. 5.
Document 7: John Lloyd (tennis): John Lloyd (born 27 August 1954) is a British former professional tennis player. Lloyd reached an ATP world ranking of 21 from 23 July 1978 to 30 July 1978, and was ranked as UK number 1 in 1984 and 1985. He now works as sports commentator.
Document 8: 1970 Australian Open – Men's Doubles: Bob Lutz and Stan Smith defeated John Alexander and Phil Dent 6–3, 8–6, 6–3 in the final to win the Men's Doubles title at the 1970 Australian Open.
Document 9: Brad Drewett: Brad Drewett (19 July 1958 – 3 May 2013) was an Australian tennis player and ATP official. He was the 1975 and 1977 Australian Open Junior champion and the youngest player at age 17 to win the title since Ken Rosewall and John Newcombe. He was also the third-youngest Australian Open quarter-finalist in his first Grand Slam, at 17 years 5 months in 1975, behind Boris Becker, 17 years 4 days in 1984 and Goran Ivanišević, 17 years 4 months in 1989.
Document 10: Manuel Orantes: Manuel Orantes Corral (] ; born 6 February 1949) is a former tennis player who was active in the 1970s and 1980s. He won the US Open men's singles in 1975, beating defending champion Jimmy Connors in the final. Orantes reached a career-high singles ranking of World No. 2.
Document 11: Phil Dent: Philip Clive Dent (born 14 February 1950), is a former professional tennis player. Dent's high water mark as a pro singles player was reaching the Australian Open final in 1974, which he lost to Jimmy Connors in four sets. Dent was also the Men's Doubles champion at the Australian Open in 1975 (with teammate John Alexander), and the Mixed Doubles champion at the US Open in 1976 (with teammate Billie Jean King).
Document 12: Andy Murray: Sir Andrew Barron Murray, {'1': ", '2': ", '3': ", '4': "} (born 15 May 1987) is a British professional tennis player from Scotland currently ranked world no. 3 in men's singles. Murray represents Great Britain in his sporting activities and is a three-time Grand Slam tournament winner, two-time Olympic champion, Davis Cup champion and the winner of the 2016 ATP World Tour Finals.
Document 13: Roger Taylor (tennis): Roger Taylor MBE (born 14 October 1941) is a British former tennis player. Born in Sheffield, South Yorkshire, he won 6 singles titles and 10 doubles titles during his career. He achieved success at several Grand Slam tournaments, reaching the quarter-finals of the French Open in 1973, the semi-finals of Wimbledon during the same year and winning back to back US Open Men's Doubles titles in 1971 and 1972. He also enjoyed particular success in 1970, again reaching the semi-finals of Wimbledon, where he achieved a big upset win over defending champion Rod Laver en route, and the semi-finals of the Australian Open. Taylor also reached the semi-finals at Wimbledon in 1967. His career-high ATP singles ranking was World No. 11, though Taylor was ranked World No. 8 in 1970 before the ATP rankings began.
Document 14: Chris Evert: Christine Marie Evert (born December 21, 1954), known as Chris Evert Lloyd from 1979 to 1987, is a former World No. 1 professional tennis player from the United States. She won 18 Grand Slam singles championships and three doubles titles. She was the year-ending World No. 1 singles player in 1974, 1975, 1976, 1977, 1978, 1980, and 1981. Overall Evert won 157 singles championships and 32 doubles titles.
Document 15: Vitas Gerulaitis: Vytautas Kevin Gerulaitis (July 26, 1954 – September 17, 1994) was an American professional tennis player. In 1975, Gerulaitis won the men's doubles title at Wimbledon, partnering with Sandy Mayer. He won the men's singles title at one of the two Australian Open tournaments held in 1977 (Gerulaitis won the tournament that was held in December, while Roscoe Tanner won the earlier January tournament). Gerulaitis also won two Italian Open titles, in 1977 and 1979, and the WCT Finals in Dallas, in 1978.
ground_truth: professional tennis player.