MichaelSchumacher hung up his racesuit at the end of the 2006 season, bowingout of Formula One as a seven-time motorsport legend.
But itwasn't enough of a legacy to keep him off the track for good. The41-year-old is relishing a return for Mercedes and it remains to beseen whether it will be a heroic return, or one to sully his greatreputation.
To mark the occasion, Sportsmail celebrates our favourite comebacks, be they good or bad.
As always, we reveal 10 each day through the week till our No 1 is revealed on Friday.
And we want you to get involved and have your say.
Read Nos 50-41 Read Nos 40-31 Read Nos 30-21 20 Jennifer Capriati Capriati took a break from competitive tennis in late 1993, an inevitable departure after theft (and then later drug) allegations.
The child prodigy was watching her tennis career disappear and, after an aborted return to the tour, Capriati didn't play again for 15 months.
However, her comeback gained momentum towards the end of the '90s and in 2001 she won the Australian and French Opens as well as reaching the semis at Wimbledon and the US Open.
19 Shane Warne Never one to shun the limelight, the Australian spin bowling wizard's career was one pock-marked with incidents which made front page news.
Warney was banned for a year in 2003 after being found guilty of breaching the ACB's drug code. The ban ruled the leggie out of the World Cup and Test series against the West Indies, Bangladesh, Zimbabwe, India.
He busied himself with anti-hairloss adverts before returning in March 2004 and promptly became the second cricketer after Courtney Walsh to take 500 Test wickets and was part of the Ashes whitewash in 2006/7.
18 Monica Seles Deranged Steffi Graf fan Gunter Parche almost ended Seles' career after stabbing her between the shoulders with a boning knife while she sat at her chair between games.
The Yugoslavia-born star was attacked in April 1993 and though her wounds took weeks to heal, the psychological scars meant it took her two years to return to the sport.
Seles returned to the tour in August 1995 and won her first comeback tournament, the Canadian Open. The following month at the US Open, Seles lost the final to Graf but in January 1996 she won her fourth Australian Open, beating Anke Huber in the final.
17 Tommy John The Los Angeles Dodgers pitcher permanently damaged the ulnar collateral ligament in his pitching arm during the 1974 season. It was an injury which had, up until that point, ended players' careers, and it would have been the same for John had it not been for revolutionary surgery performed by Dr Frank Jobe.
The operation still known today as Tommy John surgery rectified his career and he returned to the Dodgers in 1976.
16 Roberto Duran Five years in the boxing wilderness did nothing to dampen the fight in Duran's heart after being stripped of his WBA Junior Middleweight title in 1984.
The Panamanian did not contend another title fight until February 24, 1989 when he took the WBC Middleweight Championship from Iran 'The Blade' Barkley in a 12 round points victory.
The 38-year-old former Lightweight Champion took the middleweight crown and his fourth title.
15 Lester Piggott Retirement was anything but straight forward for Piggott who had called it a day in 1985 but in October 1987 he was sentenced to three years imprisonment for tax evasion.
He served one year and one day of his sentence and in 1990, at the age of 54, he returned to the saddle.
Piggott finished runner up in his first outing at Leicester but better was come when he won the Breeders' Cup Mile nine days later. Later, he rode his 30th and final Classic winner in the 1992 2,000 Guineas.
14 Andre Agassi Drug abuse and injury led Agassi's ranking to drop to world number 141 in November 1997, and the three-time Grand Slam champion's career seemed finished.
But Agassi started on the comeback trail in 1998 and after a series of tour victories was back in the world top ten rankings and ready to mount a sustained assault on the Grand Slam events once again.
Agassi's return was complete when in 1999 he came from two sets to love down to beat Andrei Medvedev in a five-set French Open final.
13 Jason Robinson, Mark Regan, Lawrence Dallagio You wouldn't blame this triumvirate of England stars for calling time on their careers after England's thrilling World Cup win in 2003.
Many players opted to avoid the ending their careers soon after the victory in Australia to avoid the ignominy of defeat in France four years later and it seemed Robinson, Regan and Dallagliio were no different.
The trio all retired between August 2004 and September 2005 but were coaxed back into the squad as an unfancied England side reached the final in 2008 before they finally called time on their playing days.
12 Dwain Chambers A great comeback but certainly one that has divided sport and fans alike.
Chambers' ban from athletics after testing positive for steroid tetrahydrogestrinone (THG) in 2003 was compounded by subsequent revelations about the level of his abuse.
Chambers was cleared to return to the athletics circuit by the IAAF on 10 June 2006 but failed to re-establish himself, opting to drop out of sprinting to try his hand at NFL followed by a bizarre trial at rugby league side Castleford.
He returned to athletics and a run of good form culminated in success at the 2009 European Indoor Championships. His gold medal-winning performance came in the 60 metre final came in 6.46 seconds.
11 Paolo Rossi The Italian legend's career lay in tatters in 1980 after he was suspended for three years following his alleged involvement in the Totonero betting scandal.
Rossi continually protested his innocence and the ban was reduced to two years, allowing him to return for the Nerazzuri in time for the 1982 World Cup in Spain.
At the Finals he finished top scorer and was voted player of the tournament which included his memorable hat-trick against Brazil and a goal in the final against West Germany in Italy's 3-1 win.
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