The professional or amateur status of an inventor is relevant, since professional inventors earn ordinary income.
Hopkins has only been beaten once since turning professional in 1988 and that was by Roy Jones more than 10 years ago.
Earl, 28, had been seen as a potential opponent for Khan but Katsidis extended his unbeaten record to 22 fights since turning professional in 2001.
In October 2010, six months after returning to golf with such poor form that he failed to win a single event in a season for the first time since turning professional, Woods lost his world best crown to Englishman Lee Westwood -- ending a record run of 281 consecutive weeks at the top (which started in June 2005).
He told CNN that since becoming a professional online gamer, his life had changed a lot.
He has since won 10 professional events (mostly on the Japanese Tour) and is sponsored by Panasonic, Toyota and Yonex.
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The Londoner has had little to cheer since he turned professional amid great fanfare in 2000 after striking gold at the Sydney Olympics.
His mother was also travelling with him, as she has done since he turned professional, as a teen-ager, but she is milder, sweet, open.
Every training run time, every sparring session and every gym visit are all logged in the book Froch has kept since he turned professional in 2002.
He has contested every Open since he turned professional in 1994, but only finished in the top 10 once when he was third at Troon in 2004.
Wilson, 28, has finished runner-up on the Tour on no less that eight occasions since becoming a professional in 2005, most recently losing out in a play-off to Sergio Garcia at the HSBC Champions.
He has been in the business of finding jobs for just about every kind of professional since 1973, and Tony has personally found more than 8, 500 individuals jobs during his 38 years in the business.
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Since signing his first professional contract at Carrow Road in 2006 Spillane has made just 18 first-team appearances.
Since her retirement from professional sailing in February 2010 she has also founded the Ellen MacArthur Foundation to promote sustainability.
The team were hammered in all three Test matches but, overall, the brand has fared well since rugby union turned professional.
However, attendances have not hit targets, prompting fears of further financial troubles after being dogged by money issues since the game went professional in 1995.
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Since Beinisch's professional godfather, retired Supreme Court president Aharon Barak, enacted his "judicial revolution" in the 1990s, Israel's judicial system has been without parallel in the Western world.
All of which raises a rather awkward question about someone who may be the most accomplished player to dabble in U.S. professional soccer since Pele: Is he actually worth the money?
"It has been a privilege to serve as executive chairman and president of the ATP, an organization that I've been a part of for more than 35 years since I became a professional tennis player, " Drewett said in a statement.
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Since I wrote about professional moms on the sidelines, I have been overwhelmed by the stories of talented professional women who chose to opt out yet found they had no choices at all when they wanted to return to work.
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Since the game went professional, Wales have claimed just three wins over the Tri-Nations sides, one against a weakened South Africa in the game to open the Millennium Stadium in 1999, two against transitional post-World Cup Australia teams in Cardiff in Wales' Grand Slam years of 2005 and 2008.
Neymar has been pursued by a number of Europe's biggest professional clubs since making his debut with Santos while still a teenager, but had previously resisted a move overseas in favor of remaining in Brazil, where his lightning speed, mesmerizing skills and ever-changing hairstyles have made him one of the country's richest and most recognizable athletes.
For 30 years Kiran Mazumdar-Shaw and Nilima Rovshen were best friends, since their days as single professional women in Bangalore at a time when Indian career women were rare.
But up until the Nets moved from New Jersey to Brooklyn this season, the borough had been without a professional sports team since the Dodgers left for Los Angeles in 1957.
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And since the entire purpose of professional investors is to shuffle money to where it will earn them the highest return, some of the money from an expanded money supply often finds its way into commodity markets.
David Ferrer has spent much of his career in the shadow of Rafael Nadal, but the 30-year-old joined his absent compatriot in becoming only the second Spaniard to reach the last eight of all four grand slams in a calendar year since the start of the professional era in 1968.
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But since Paulson spent most of his professional life in the private sector, there is much the public does not know.
For example, he personally retrieves planes seized in drug busts, since it can take weeks to commission professional pilots for the job.
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Since the initial product viewing, almost all professional reviewers have said the Surface is neat, but not fantastically so.
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The Spurs have the best record in major professional U.S. sports since Duncan arrived, winning 70% of their games and four NBA titles.
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