In summary - Round 1 - Nothing happened, tentative from both. Round 2 - I gave this to Jap. Sturm did nothing, Sato threw some flurries and got Sturm's attention once. Think he punched himself out in this round, sad indictment on his stamina and punch technique. Round 2 onwards - Sturm keeps a high guard, pushes him back with the jab. Slowly breaks him down round by round with the jab, swelling his eyes. Progressively he let more power punches go, the Jap unravelled only offering the occasional limp armed flurry which entirely hit Sturm's arms. Looked like an amateur, but he showed heart.