BBC Sport's advent calendar - 12 December
Day 12 of BBC Sport's advent calendar sees Chad le Clos's father Bert overcome with pride after watching his son beat Michael Phelps to Olympic gold at London 2012.
The South African won the 200m butterfly in one minute 52.96 seconds, 0.05 seconds ahead of Phelps with Japan's Takeshi Matsuda third.
Watch a full replay of the session in our Interactive Video Player.
Available to UK users only