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.
Jelena Genčić (Serbian Cyrillic: Јелена Генчић, ] ; 9 October 1936 – 1 June 2013) was a Serbian tennis and handball player and coach.
 In the 1970s she became a junior tennis coach and was later credited for playing a major role in the early development of numerous top class professional players and future grand slam champions.
 Among the players she discovered and coached are Monica Seles, Novak Djokovic, Goran Ivanišević, Mima Jaušovec, Iva Majoli, and Tatjana Ječmenica.
Robert Lutz (born August 29, 1947) is a former amateur and professional tennis player of the 1960s and 1970s.
 He and his longtime partner Stan Smith were one of the best doubles teams of all time.
 Bud Collins ranked Lutz as World No. 7 in 1972.
 Between 1967 and 1977 he was ranked among the top-10 American players 8 times, with his highest ranking being No. 5 in both 1968 and 1970.
Goran Ivanišević (; born 13 September 1971) is a retired Croatian professional tennis player and current tennis coach.
 He is the only person to win the men's singles title at Wimbledon as a wildcard.
 He achieved this in 2001, having previously been runner-up at the championships in 1992, 1994 and 1998.
 Before the 2001 tournament, he was ranked 125th and after his victory he was 16th.
 His career-high singles ranking was World No. 2 (behind Pete Sampras) in 1994.
 He coached Marin Čilić from September 2013 to July 2016, leading Čilić to his biggest achievement to date, the 2014 US Open title.
Marcos Ondruska (born 18 December 1972) is a former tennis player from South Africa, who turned professional in 1989.
 He represented his native country at the 1996 Summer Olympics in Atlanta, Georgia, where he defeated Goran Ivanišević in the first round before falling to Norway's Christian Ruud.
 The right-hander won four career titles in doubles, and reached his highest singles ATP-ranking on 10 May 1993, when he became the number 27 of the world.
Bernardo Gonçalves Pereira Mota (born 14 July 1971 in Lisbon) is a former tennis player from Portugal, who turned professional in 1991.
 He represented his native country at the 1992 Summer Olympics in Barcelona, where he was defeated in the first round by Croatia's Goran Ivanišević.
 The right-hander reached his highest singles ATP-ranking on March 31, 1997, when he became the number 194 of the world.
The 1997 Croatian Indoors was a men's tennis tournament played on indoor carpet courts at the Dom Sportova in Zagreb in Croatia and was part of the World Series of the 1997 ATP Tour.
 It was the second edition of the tournament and took place from January 27 through February 2, 1997.
 Goran Ivanišević won the singles title.
The 1991 Davis Cup was the 80th edition of the most important tournament between national teams in men's tennis.
 A total of 87 nations participated in the tournament.
 In the final, France defeated the United States at the Palais des Sports de Gerland in Lyon, France, on 29 November - 1 December.
 During the tournament, Yugoslavia was in the process of dissolving.
 Croatian tennis players Goran Ivanišević and Goran Prpić withdrew from the team after the declaration of Croatian independence, with the team losing its subsequent draw against France.
The 1996 ABN AMRO World Tennis Tournament was a men's tennis tournament played on indoor carpet courts at Ahoy Rotterdam in the Netherlands.
 It was part of the World Series of the 1996 ATP Tour.
 The tournament ran from 4 March 4 through 10 March 1996.
 Goran Ivanišević won the singles title.
The 2014 BRD Năstase Țiriac Trophy was a tennis tournament played on outdoor clay courts and held at Arenele BNR in Bucharest, Romania, from 21 to 27 April 2014.
 It was the 22nd edition of the BRD Năstase Țiriac Trophy tournament, and was part of the ATP World Tour 250 Series of the 2014 ATP World Tour.
 The event also futured an exhibition match with Goran Ivanišević, Cédric Pioline, Ilie Năstase and Andrei Pavel.

Question: Which professional tennis player achieved a higher World ranking, Bob Lutz or Goran Ivanišević?
Answer: Goran Ivanišević