Question: Are Jim Pugh and Laura Siegemund both professional tennis players?

Context articles: Athletic DNA
Mate Pavić
Jim Pugh
Challenge of Champions
1991 Wimbledon Championships – Men's Doubles
John Hillebrand
Laura Siegemund
Virginia Slims Circuit
Little Caesars Championship Tennis Tournament
1968 Wimbledon Championships – Men's Singles

Athletic DNA (ADNA) is an American sports apparel company.
 Founded in Seattle in 2007, ADNA began by training young tennis athletes, which evolved into sponsoring Select Junior Tennis players, and then expanded to manufacturing clothing for youth and adult tennis players.
 ADNA has since spread to professional tennis, and currently sponsors players on the ATP Tour & WTA Tour.
Mate Pavić (born 4 July 1993) is a Croatian professional tennis player specialising in doubles.
 Mate won the 2016 US Open mixed doubles title in partnership with Laura Siegemund, and reached the 2017 Wimbledon Championships men's doubles finals partnering Oliver Marach.
Jim Pugh (born February 5, 1964 in Burbank, California) is a former professional tennis player from the United States.
 A doubles specialist, he won three Grand Slam men's doubles titles (two Australian Open, one Wimbledon) and five Grand Slam mixed doubles titles (three Australian Open, one Wimbledon, one US Open).
 Pugh reached the World No. 1 doubles ranking in 1989.
The "Challenge of Champions" was created to be one of the richest prize money tennis events in the world.
 Created by Leo E. Fenn III in 1985 as an Invitation Only Tennis Tournament which would feature daily matches which were the equivalent to the Finals of the US Open or Wimbledon.
 It was usually held before the Masters and invited only the top eight men's tennis players in the world according to their rankings on the ATP poll.
 In 1985, creator & founder 24-year-old Leo E. Fenn III partnered with 28-year-old Mark Myden to form a company called Special Events Productions.
 SEP produced the "Challenge of Champions" Tournament which became a major player in professional tennis.
 These two entrepreneurs became the youngest producers in history of professional tennis.
 Leo & Mark acquired major fortune 500 corporate sponsors such as AT&T, VISA, Cadillac, Fila Sportswear, DeBeers Diamonds as well as negotiated two days of live weekend television coverage on NBC.
 Their title sponsorship package sold to AT&T was the largest single vent sponsorship package in professional tennis that year.
 Leo negotiated with the brand new Thomas Mack Center Arena in Las Vegas to host the inaugural event.
 The event rights were eventually sold to Pro Serve and concluded following the 1989 Challenge.
The Men's Doubles tournament at the 1991 Wimbledon Championships was held from 24 June to 7 July 1991 on the outdoor grass courts at the All England Lawn Tennis Club in the Wimbledon district in London, England.
 Rick Leach and Jim Pugh were the defending champions, but lost in the first round to Goran Ivanisevic and John McEnroe.
 John Fitzgerald and Anders Järryd won the title, defeating Javier Frana and Leonardo Lavalle in the final.
John Hillebrand is an Australian former tennis player who was active from the late 1950s until the early 1970s.
 He is currently living in San Pedro, California.
 He had met Dale Jensen in London and upon arriving in California called him and wanted help to relocate there.
 Dale arranged for him to immediately play a Senior tournament in Costa Mesa, where he met Dr. Jim Pugh, a Dentist, and fine Tennis Player.
 They immediately became good friends.
 Jim sponsored John in the US and had him teach his son, Jim.
Laura Natalie Siegemund (born 4 March 1988 in Filderstadt) is a German professional tennis player.
The Virginia Slims Circuit was a tennis tour consisting of a group of originally nine female professional players.
 Formed in 1970, the Virginia Slims Circuit eventually became the basis for the later named WTA Tour.
 The players, dubbed the "Original 9", rebelled against the United States Lawn Tennis Association (USLTA) due to the wide inequality between the amount of prize money paid to male tennis players and to female tennis players.
The Little Caesars Championship Tennis Tournament is a defunct tennis tournament that was played on the Grand Prix tennis circuit for one year in 1988.
 The event was held in Detroit, Michigan and was played on indoor carpet.
 John McEnroe won the singles event while Rick Leach and Jim Pugh teamed-up to win the doubles event.
Rod Laver defeated Tony Roche 6–3, 6–4, 6–2 in the final to win the Gentlemen's Singles title at the 1968 Wimbledon Championships.
 It was Laver's third Wimbledon title, and his seventh grand slam overall.
 This was the first year when professional tennis players were allowed to compete at the Wimbledon Championships.
 Previously only amateur tennis players could compete.