Tony Bellew says he is considering retirement following his surprise victory over bitter rival David Haye at London's O2 Arena on Saturday.
Diego Costa and Eden Hazard scored as Chelsea beat West Ham to extend their lead at the top of the Premier League to 10 points.
Sergio Aguero scored his fifth goal in his last three games to help Manchester City back into third place in the Premier League and keep Sunderland rooted to the bottom of the table.
American Dustin Johnson held off a strong European challenge to win his first tournament as world number one at the World Golf Championships in Mexico.
Britain's Laura Muir and Asha Philip won gold at the European Indoor Athletics Championships in Belgrade.
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