Pang Sheng Jun of Singapore in action during the freestyle leg of the men's 400m individual medley. He came in second with a time of 4 minutes and 24.81 seconds. (Photo © Lee Jian Wei/Red Sports)

Pang Sheng Jun of Singapore in action during the freestyle leg of the men’s 400m individual medley. He came in second with a time of 4 minutes and 24.81 seconds. (Photo 10 © Lee Jian Wei/Red Sports)