I really like swimming and Michael Phelps. Have you heard of him?
Oh, for sure.  the all-time record holder for Olympic gold medals!
Yes, he's won a lot of gold medals. Do you know what his best stroke is?
I'd say the butterfly.  He's a world record holder there.
Really?! I didn't realize he held the world record in that stroke. What other sports do you like?
I'm  big track and field fan of Usain Bolt.
Oh, I heard recently that his teammate was found to have taken drugs...relay team member
Doping seems to be very widespread at Olympic competitions.