Weekend in sport: Manchester City extend winning run; Federer goes down; F1 fisticuffs

David Silva celebrates with teammates after scoring the first goal during the Manchester derby at the Etihad Stadium.

(CNN)Roger Federer loses at the ATP Finals in straight sets... The blue half of Manchester celebrates as United lose to City... The All Blacks eke out a narrow victory... Boca Juniors denied a home win in Copa finals... Hamilton's win overshadowed by slaps. This is your Monday sporting recap.

Federer falls to Nishikori in ATP Finals