The player long considered to have had the best backhand of all time, amateur and professional champion Don Budge, had a very powerful one-handed stroke in the 1930s and '40s that imparted topspin onto the ball. He used an Eastern grip, and some pictures show his thumb extended along the side of the racquet for greater support. Ken Rosewall, another amateur and professional champion noted for his one-handed backhand, also used a continental grip to hit a deadly accurate slice backhand with underspin throughout the 1950s and '60s. Connoisseurs of the game also rate Swede Henrik Sundström's one-handed backhand as technically magnificent and as powerful as many forehands, but Sundström's career was cut short by injury.