Question: Which tennis player achieved a higher world ranking in either singles or doubles, Manuel Orantes or the Czech Lukáš Dlouhý?

Context paragraphs:
Magnus Tideman: Magnus Tideman (born 9 April 1963), is a former professional tennis player from Sweden.  He enjoyed most of his tennis success while playing doubles, winning 1 doubles title and achieved a career-high of World No. 43 in 1988.  In singles, he reached the quarterfinals of Toulouse in 1982 (defeating Thierry Tulasne en route) and achieved a career-high ranking of World No. 100 in 1983.  Tideman also defeated Manuel Orantes en route to the third round of the 1983 French Open.

1972 Swedish Open: The 1972 Swedish Open was a men's tennis tournament played on outdoor clay courts held in Båstad, Sweden.  It was classified as a Group C category tournament and was part of the 1972 Grand Prix circuit.  It was the 25th edition of the tournament and was held from July 17 through July 23, 1972.  Manuel Orantes won the singles title.  No doubles event was held that year.

Lukáš Dlouhý: Lukáš Dlouhý (born 9 April 1983) is a professional Czech tennis player on the ATP Tour.  A doubles specialist, Dlouhý reached a career-high ranking of World No. 5 in June 2009.

1973 Louisville Open: The 1973 Louisville Open, also known as the First National Tennis Classic, was a men's tennis tournament played on outdoor clay courts at the Louisville Tennis Center in Louisville, Kentucky, USA.  It was the fourth edition of the tournament and was held from 30 July through 5 August 1973.  The tournament was part of the Grand Prix tennis circuit and categorized in Group A.  The singles final was won by fourth-seeded Manuel Orantes who earned 80 Grand Prix points.

1976 Bavarian Tennis Championships: The 1976 Bavarian Tennis Championships (also known by its sponsored name Romika Cup) was a men's tennis tournament that was part of the Two Star category of the 1976 Grand Prix tennis circuit.  The tournament was held at the MTTC Iphitos in Munich, Germany and ran from May 4 through May 9, 1976.  Manuel Orantes won the singles title.

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.

Viktor Galović: Viktor Galović (born 19 September 1990 in Nova Gradiška) is a Croatian tennis player.  Galović has a career high ATP singles ranking of 224, achieved on 17 July 2017.  Galović made his ATP main draw singles debut at the 2014 Bet-at-home Cup Kitzbühel where he qualified for the main draw, defeating Philipp Davydenko, Lukáš Dlouhý and Antonio Veić en route.  In the main draw he lost to Albert Ramos-Viñolas in three sets in the first round.

Lukáš Rosol: Lukáš Rosol (] ; born 24 July 1985) is a Czech professional tennis player.  Rosol competes on the ATP Challenger Tour and the ATP World Tour, both in singles and doubles.  Rosol was coached by former Czech player, 1999 US Open quarterfinalist Ctislav Doseděl.  His career-high singles ranking is World No. 26, achieved on 22 September 2014.

1977 U.S. Pro Tennis Championships: The 1977 U.S. Pro Tennis Championships was a men's tennis tournament played on outdoor green clay courts (Har-Tru) at the Longwood Cricket Club in Boston, USA.  The event was categorized as a 4 Star tournament and was part of the 1977 Grand Prix circuit.  It was the 50th edition of the tournament and was held from August 22 through August 30, 1977.  Third-seeded Manuel Orantes won the singles title and the accompanying $32,000 first-prize money as well as 125 Grand Prix ranking points.  First-seeded Jimmy Connors withdrew after the quarterfinals due to a back injury.

1978 U.S. Pro Tennis Championships: The 1978 U.S. Pro Tennis Championships was a men's tennis tournament played on outdoor green clay courts (Har-Tru) at the Longwood Cricket Club in Boston, USA.  The event was part of the 1978 Grand Prix circuit.  It was the 51st edition of the tournament and was held from August 21 through August 28, 1978.  Despite pressure to switch to a hard court surface from the Association of Tennis Professionals (ATP) and some leading players, in line with the surface change made that year by the US Open which directly followed the Boston event, the tournament organization elected to remain a clay court tournament in 1978.  Several top players including Björn Borg, Guillermo Vilas and Jimmy Connors elected not to play the tournament.  Fourth-seeded and defending champion Manuel Orantes won the singles title and the accompanying $32,000 first-prize money.  The final was delayed until Tuesday, August 29 due to rain.

Supporting paragraphs: Manuel Orantes Lukáš Dlouhý
Answer: Manuel Orantes