England footballer John Terry's racism trial has heard from the fellow player he's alleged to have racially abused - who's said he wasn't aware of it until his girlfriend showed him YouTube footage of the alleged incident.

The court's been told the Chelsea captain shouted abuse at Anton Ferdinand in response to claims he had an affair with a teammate's partner.

The Chelsea captain denies racially abusing the Queens Park Rangers defender during a match last October - saying the comments were 'exaggerated sarcasm'.