Yankees as a spot starter in 1946, he had a 5–1 win–loss record and a 1.77 ERA when he suffered a broken kneecap from a line drive hit by Hank Majeski, and missed the remainder of the season. In total, Ruffing won 231 games with the Yankees. This mark was the most in franchise history, until Ford surpassed it in 1965. He remains the winningest right-handed pitcher in Yankees' history. Chicago White Sox (1947) Suffering from recurrent knee injuries, the Yankees released Ruffing after the 1946 season. He signed with the Chicago White Sox for the 1947 season, but continued to be limited by his knee. In May, the White Sox removed Ruffing from their active roster after he was hit in his bad knee with another line drive. He rejoined the White Sox' active roster in July. He pitched to a 3–5 win–loss record and a 6.11 ERA in nine games pitched on the season. Ruffing retired after the 1947 season. Career summary Ruffing threw a fastball, a "sharp" curveball, and a slider. According to AL umpire Bill Summers, "[O]n account of Red Ruffing, the slider got to be the thing." Joe Paparella, also an AL umpire, said "The first game I ever worked behind the plate in the major leagues was against the guy who invented the slider and had the best slider ever seen — Red Ruffing". Ruffing finished his career with 273 wins, 225 losses, 1,987 strikeouts and a 3.80 ERA. He also had 16 saves. Ruffing compiled 335 complete games in his 536 games started. A combination of his extensive career workload, the offense-heavy era he pitched in, poor early ERAs prior to a mid-career change in his delivery, and the fact he pitched his entire 22-year career in a single league, Ruffing holds the AL record for most runs and earned runs allowed. This belies the fact that he finished in the Top 10 in the AL in ERA for eight consecutive years after mastering his new delivery, finishing 2nd twice and 3rd and 4th once each between 1932 and 1940. This two second place finishes were to Hall of Famer Lefty Grove, who dominated the 1930s with seven league leads during the decade en route to his all-time AL record of nine. So high were ERAs during the 1932-1940 span that three times Grove was the only pitcher to better a 3.00 ERA,