Vijender Singh (right) and Francis Cheka (left) along with Neerav Tomar, MD, IOS pose with the WBO Super Middleweight Asia Pacific belt in New Delhi yesterday. Pic/PTI

New Delhi: One-upmanship is a pre-requisite in Pro-Boxing. But Vijender Singh's next WBO Asia Pacific challenger Tanzanian Francis Cheka took it to another level by undermining India's first Olympic medallist in the sport.