At this point, Bradman had played 15 Test matches since the beginning of 1930, scoring 2,227 runs at an average of 131. He had played 18 innings, scoring 10 centuries, six of which had extended beyond 200. His overall scoring rate was 42 runs per hour, with 856 (or 38.5% of his tally) scored in boundaries. Significantly, he had not hit a six, which typified Bradman's attitude: if he hit the ball along the ground, then it could not be caught. During this phase of his career, his youth and natural fitness allowed him to adopt a "machine-like" approach to batting. The South African fast bowler Sandy Bell described bowling to him as, "heart-breaking ... with his sort of cynical grin, which rather reminds one of the Sphinx ... he never seems to perspire".