BBC Sport - Greg James starts Gregathlon challenge for Sport Relief in Belfast

Greg James starts Gregathlon challenge in Belfast

Greg James started his mammoth Gregathlon challenge for Sport Relief in Belfast on Monday.

The Radio 1 presenter is aiming to complete five triathlons over five days in five different UK cities - as well as present his daily afternoon show.

He kicked it off with an open water swim in Belfast during the Radio 1 Breakfast Show with Nick Grimshaw.