Question: What 3 time champion podiumed at Mosport in 1981?

Context paragraphs:
Sagat Petchyindee: Sagat Petchyindee (born Sakat Phonpimai, November 30, 1957) is a Thai former professional boxer, Muay Thai fighter, actor and trainer who is considered one of the greatest Muay Thai fighters and was a 3 time Lumpinee Champion, 3 time Rajadammern Champion and Muay Thai and Kickboxing World Champion Since retiring he works as a kickboxing trainer.

Alexandre Dantas: Alexandre "Cafe" Dantas (born March 1, 1979) is a Brazilian retired mixed martial artist.  He competed in the Heavyweight division.  He lost his last fight at UFC 41 against Gan McGee on February 28, 2003.  He is a 3 times world champion in Brazilian jiu-jitsu, the 2002 champion in the open division Brazilian Championship, a 5 times Rio de Janeiro jiu-jitsu champion, the 2007 champion of de ADCC trials in Brazil, the Brazilian Teams Champion at Gracie Barra team, 3 time champion of Brazil X USA jiu-jitsu, 3 time Pan-American jiu-jitsu champion, the 2000 USA Jiu-jitsu champion, 5 time champion of the open division of Copa Café Jiu-jitsu in MIguel Pereira - Rio de Janeiro, among other championships.

Bobby Rahal: Robert Woodward "Bobby" Rahal (born January 10, 1953) is an American former auto racing driver and team owner.  As a driver he won three championships and 24 races in the CART open-wheel series, including the 1986 Indianapolis 500.  He also won the 2004 Indianapolis 500 as a team owner for the winning driver, Buddy Rice.

Nicolas Charbonnier: Nicolas Charbonnier (born 4 August 1981) is a French sailor, Olympic athlete who won a bronze medal at the 2008 Summer Olympics Games (Beijing China).  He is 4 time World Champion, 3 time European Champion and "alinghi" team's tactician (Décision 35 and GC 32 Racing).

Danny Tenaglia: Daniel "Danny" Tenaglia (born March 7, 1961) is a New York-based DJ and Grammy nominated record producer.  He is also a 3 time International Dance Music Award winner, 3 time DJ Awards winner and 2 time Muzik Awards recipient.

Mohamed Abdelfatah: Mohamed Abdelfattah (Arabic: محمد عبد الفتاح‎ ‎ , born February 4, 1978 in Suez, Egypt), commonly known by his nickname "Bogy" (Arabic: بوجى‎ ‎ ), is an Egyptian Olympic Greco-Roman wrestler Compete in 76 kg, 84 kg, and 96 kg weight class.  He is a 2006 world champion, 3 time World Medalist, and 3 time Olympian who is best known for his technique, creativity, strength, and his powerful and accurate scoring ability.  After retiring as a player, Bogy became coach of Sweden National Team, and in his first season 2009 he successfully guided Jimmy Lidberg to win a silver medal and Jalmar Sjöberg to win a bronze medal in the 2009 world championship in Denmark.

1981 Can-Am season: The 1981 Can Am series season was the fourteenth running of the Sports Car Club of America's prototype-based series, and the fifth running of the revived series.  Geoff Brabham was declared champion, despite only winning two races.  Chevrolet again dominated the season.  The dominant chassis manufacturers were March, Lola, Holbert, Frissbee, and VDS.  IndyCar drivers Al Unser and Bobby Rahal also podiumed at Road America and Mosport, respectively.

A.J. Freeley: A.J. Freeley or Freely is a semi-retired New Zealand professional wrestler.  He competed throughout Australasia and in the United States during the 1990s, however, he is best remembered as the last NWA New Zealand Heavyweight Champion of Steve Rickard's NWA New Zealand.  He won the belt from 3-time champion Bruno Bekkar in 1992, shortly before the promotion's close, and was billed as champion until the end of the decade.

Denis Tsargush: Denís Tsargúsh (Abkhaz: Дени́с Царгәы́ш , IPA /dɛˈnis t͡sʰɑrˈgʷɨʂ/, born 1 September 1987 in Gudauta, Abkhazia, Georgia), also known as Dinislam Tsargush, is a Russian freestyle wrestler of Abkhaz descent.  He is a 3 time European Champion, 3 time World Champion and also won a bronze medal at the Olympic Games 2012.  Grand Master of Sports in Freestyle Wrestling.

HC TPS: TPS or Turun Palloseura is an ice hockey team and 10-time champion of SM-liiga and 1-time champion of SM-sarja.  They play in Turku, Finland, at the Gatorade Center.  In terms of championships, TPS is the all-time most successful team in the 1975-founded SM-liiga alongside with Tappara which also has 10 titles.

Supporting paragraphs: 1981 Can-Am season Bobby Rahal
Answer: Bobby Rahal