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Great Britain's gold medal duo, Jack Laugher and Chris Mears discuss their theory behind green water in Olympic diving pool.

"The swamp? Yeah, it's different," said Jack, 21.

"It was probably at it's worst when we were competing," added 23-year-old Chris.

Jack also discussed being taken for a doping control test after winning gold. His first urine test was "too clear", so he had to provide a second sample:

"It sucked. There's nothing worse than having a full bladder and being told it's not good enough! That is a kick in the teeth after getting a gold medal... being told you're not good enough at weeing!"

This clip is originally from 5 live Sport on Thursday 11 August 2016.