In a game at Washington that the White Sox won, 10-9, future Hall-of-Famer Ray Schalk caught his 1,500th career game. At the time of his retirement in 1929, Schalk had the third-most games caught all-time and second-most games caught in AL history.
White Sox pitchers Joe Dobson and Marv Grissom both fired shutouts in beating the Tigers in a doubleheader at Comiskey Park. The Sox won, 3-0 and 1-0. For the afternoon, Detroit only had eight total hits.
White Sox pitcher Dick Donovan hurled a one-hitter at Cleveland. Donovan allowed only a second-inning double to former White Sox infielder Eddie Robinson in winning, 4-0. He beat future teammate Early Wynn.
It was the beginning of the end for what was expected to be a stellar season. In the second inning of a game with Cleveland, White Sox outfielder Ken Henderson tore up his knee in a collision at home plate, trying to slide through future White Sox pitching coach Dave Duncan. This injury started a run that saw the Sox use the injured list 38 times in 1973. Making matters worse is that for some reason, the Sox refused to allow Henderson to have his knee operated on until September, meaning he was lost for the season — not that it would have made much difference considering all the other injuries to come.