Bulked-up but still as fast as lightning, Alex de Minaur won't be bullied by the big hitters on court any more.
Fed up of being pushed around by the power players, Australia's No.1 believes his diligent work to put on muscle and get stronger is now at the heart of his run to the third round of his least productive grand slam, the French Open.
And his theory that he's much harder for the big boys to push around will be put to the most strident test on Saturday against one of the tour's abiding attacking powerhouses, German Jan-Lennard Struff.