It's rare for Ben Simmons to crack a smile while talking to reporters.

It's as rare as the young Australian basketball superstar taking a three-point shot.

However Philadelphia 76ers' teammate JJ Redick was able to crack Simmons in front of the media this weekend with his analysis of the Australian's controversial elbow to Toronto Raptors' guard Kyle Lowry's genital area.

The NBA fined Simmons $US20,000 for "making contact to the groin" of Lowry in the 76ers' 116-95 game three win over the Raptors at Philadelphia's Wells Fargo Center.