You should always want to be the best. I respect him [Andre De Grasse] for that but I tell every youngster, I don't allow young kids to beat me.

Usain Bolt after his third successive 200m gold medal.

Maybe I come back to Turkey with a medal, maybe my mother will say 'My son is incredible'.

Turkey's Yasmani Copello after winning bronze in the men's 400m hurdles.

It's like touching the sky with your hands.

Argentina's Gonzalo Peillat on his country's first men's hockey gold medal.