The Russians started the day with a leisurely march, but the army was undisciplined and difficult to move in any concentrated, organized way. Seeing the opportunity, the Prussians attacked the milling and "unprepared mob" of Russian soldiers. Lehwaldt's cavalry attacked the northern and southern flanks of the Russian army, inflicting initial heavy losses. The Russians, entirely unprepared for an assault by an army half its size, degenerated into further confusion. Apraxin's inexperienced commanders tried to organize the infantry; General Pyotr Rumyantsev, who later became one of Russia's best generals, managed to rally the Russians in the center, as it recovered from the shock of the initial attack. General Vasily Lopukhin was bayoneted by the Prussians: some reports say he died in the arms of his comrades, others, that he died a few days later.