Federer , then a 12 - time ( now 16 - time ) Grand Slam champion , missed out on a singles medal when he dropped the bronze - medal match .
Federer recovered to win doubles gold with Swiss teammate Stanislas Wawrinka .
Federer , then a 12 - time ( now 16 - time ) Grand Slam champion , missed out on a singles medal when he dropped the bronze - medal match , but he recovered to win doubles gold with Swiss teammate Stanislas Wawrinka .