Michael Schumacher will retire from Formula One for the second time at the end of the season.
Schumacher's seat at Mercedes will be taken by McLaren's Lewis Hamilton in 2013, and with a dearth of other options available to him he has opted to quit the sport at the age of 43.
"Although I am still able to compete with the best drivers, at some point it is good to say goodbye," said Schumacher, 43.
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