McDavid and Roberts, who played 1,224 NHL games for six NHL teams and won the Stanely Cup with the Calgary Flames in 1989, assembled the quick, full-body workout with squats, wall sits, pushups and split squats in rotating sets of four.
They each demonstrated two of the four exercises in a video posted to Twitter and Instagram.
The workout was the first of a series McDavid intends to unveil throughout the NHL season pause, and he is inviting fans who participate to tag themselves while working out.
