On August 2, the Reds traded pitcher Si Johnson to the St. Louis Cardinals for pitcher Bill Walker. Johnson, who had played with Cincinnati since 1928, appeared in only two games with the Reds in 1936. He played most of his games with the Reds AA affiliate, the Toronto Maple Leafs, where he posted a 10-9 record with a 2.38 ERA in 26 games. Walker posted a 5-5 record with a 5.50 ERA in 19 games with the Cardinals in 1936. The Reds assigned Walker to Toronto for the remainder of the season. Walker had previously pitched with the New York Giants, where he led the NL with the lowest ERA in 1929 at 3.09, and again in 1931 at 2.26.