Michael Schumacher will retire from Formula One for the second time at the end of the season.
There had been suggestions Schumacher would join Sauber but instead he announced he would retire for good.
Schumacher's seat at Mercedes will be taken by McLaren's Lewis Hamilton in 2013 and he has decided to quit the sport at the age of 43
He said: "I have decided to retire at the end of the season. I still feel I am capable of competing against the best but the time sometimes comes to say goodbye and this time it might be forever."
He added: "I had been thinking about whether I had the necessary motivation to carry on but I do not want to do something I am not 100 per cent committed to. Having made the decision I now feel a release."
He will be best remembered for helping to revive Ferrari's fortunes after joining them in 1996 where he won the drivers' Championship five years in a row.
He retired at the end of 2006, but was convinced to make a comeback with the Mercedes team in 2010 by close friend Ross Brawn.
He won the world title seven times in total, which is still a record.