Differential pulley load, and an endless rope looped around the pulleys. To avoid slippage, the rope is usually replaced by a chain, and the connected pulleys by sprockets. The two sections of chain carrying the single pulley exert opposing and unequal torques on the connected pulleys, such that only the "difference" of these torques has to be compensated manually by pulling the loose part of the chain. This leads to a mechanical advantage: the force needed to lift a load is only a fraction of the load's weight. At the same time, the distance the load is lifted is smaller than the
Rope-a-dope power of welterweight titlist Miguel Cotto in their November 2009 fight. Pacquiao followed the rope-a-dope with a knockdown. Nicolino Locche, Argentine boxer nicknamed "El Intocable" (The Untouchable), used this technique extensively throughout his career. He would get against the ropes and dodge nearly every single punch until his opponent would tire, then he would take him down with combinations. "Irish" Micky Ward utilized this strategy during many of the fights in the later part of his career. Ward would wait for his opponent to become fatigued and would hit with either a left hook to the body or any number