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Team GB's quartet of Luke Greenbank, Adam Peaty, James Guy and Duncan Scott race in the hotly contested men's 4x100m medley final.
Can Great Britain round off a brilliant swimming meet with an eighth medal, which would be their highest tally ever at the Olympics? Freestyler Duncan Scott could also become the first British athlete to win four medals at a single Games. The USA are the world and Olympic champions and Caeleb Dressel could join Michael Phelps as the only two athletes to win five golds at the same Olympics since 1992.
