Man, that tramp’s got the energy of a hobo! — Lenny, “The Homer They Fall”

George Bellows, Dempsey and Firpo, 1924. Oil on canvas, 51 × 63 1/4 in. (129.5 × 160.7 cm). Whitney Museum of American Art, New York; purchase with funds from Gertrude Vanderbilt Whitney

Via Wikipedia:

Dempsey then rushed onto his rival and proceeded to drop Firpo seven times before the round was over. There was no “three knockdown” rule, and Dempsey was permitted to stand over the fallen fighter and immediately knock him down again, as there was yet no rule about going to a neutral corner.