Question: Kathy Jordan and Jack Sock, share which occupation?

Context paragraphs:
1985 Wimbledon Championships – Mixed Doubles: Wendy Turnbull and John Lloyd were the defending champions but lost in the quarterfinals to Kathy Jordan and Mark Edmondson.

1983 French Open – Women's Doubles: The Women's Doubles tournament at the 1983 French Open was held from 23 May until 5 June 1983 on the outdoor clay courts at the Stade Roland Garros in Paris, France.  Rosalyn Fairbank and Candy Reynolds won the title, defeating Kathy Jordan and Anne Smith in the final.

1983 Australian Open – Women's Singles: First-seeded Martina Navratilova defeated ninth-seeded Kathy Jordan 6–2, 7–6 in the final to win the Women's Singles title at the 1983 Australian Open tennis tournament.  The tournament was played on grass courts at the Kooyong Stadium in Melbourne from 29 November through 11 December 1983.  Navratilova earned $75,000 prize money for winning the title, her 8th career Grand Slam singles title and her 2nd title at the Australian Open after 1981.  She improved her year record to 86 wins and 1 loss.  This tournament was also notable for being the first Australian Open in which Steffi Graf appeared in the main draw, and the last time that Billie Jean King appeared in the main singles draw of a grand slam.

2016 China Open – Men's Doubles: Vasek Pospisil and Jack Sock were the defending champions, but Pospisil chose to play in Tokyo instead.  Sock played alongside Bernard Tomic but lost in the final to Pablo Carreño Busta and Rafael Nadal, who won 6−7, 6−2, [10−8].

1988 Virginia Slims of Houston – Doubles: Kathy Jordan and Martina Navratilova were the defending champions but only Navratilova competed that year with Lori McNeil.

Kathy Jordan: Kathryn "Kathy" Jordan (born December 3, 1959) is a former American tennis player.  During her career, she won seven Grand Slam titles, five of them in women's doubles and two in mixed doubles.  She also was the 1983 Australian Open women's singles runner-up and won three singles titles and 42 doubles titles.

1987 Wimbledon Championships – Mixed Doubles: Kathy Jordan and Ken Flach were the defending champions but lost in the quarterfinals to Patty Fendick and Andy Kohlberg.

1991 WTA Tour Championships – Doubles: Kathy Jordan and Elizabeth Smylie were the defending champions, but Jordan did not qualify for this year.  Smylie partnered with Nicole Provis and lost in quarterfinals to Gigi Fernández and Jana Novotná.

1986 Wimbledon Championships – Women's Doubles: Kathy Jordan and Elizabeth Smylie were the defending champions but they competed with different partners that year, Jordan with Alycia Moulton and Smylie with Catherine Tanvier.

Jack Sock: Jack Sock (born September 24, 1992) is an American professional tennis player who is currently ranked world No. 21 in men's singles by the Association of Tennis Professionals (ATP).  He is one of the top ranked American men in both singles and doubles on the ATP Tour.  A former junior US Open champion, Sock's singles success is highlighted by 7 ATP finals, including three titles.  His career best result came at the 2017 Indian Wells Masters, where he reached the semi-finals.

Supporting paragraphs: Kathy Jordan Jack Sock
Answer: tennis player