St. Louis Cardinals. The Yankees reached the World Series, facing the Pittsburgh Pirates. Pennock pitched a complete game against the Pirates in game three of the 1927 World Series, not allowing a hit until the eighth inning. Pennock's performance drew praise from teammate Babe Ruth. The Yankees swept the series from Pittsburgh. After pitching a three-hit shutout against the Red Sox on August 12, 1928, he missed the remainder of the season, including the 1928 World Series, with an arm injury. His five shutouts and 0.085 home runs per nine innings pitched led the AL. His 2.56 ERA trailed only Garland Braxton, while his 17 wins tied for eighth place. Though the Yankees defeated the Cardinals in the 1928 World Series, the Yankees' starting rotation without Pennock was likened to "a three-stringed ukulele." In the 1929 season, Pennock saw his pitching time and pitching quality diminish. Over the rest of his career, he never posted more than 189 innings pitched in a season and his ERA rose to over 4.00. He suffered from bouts of neuritis in 1929 and 1930. Pennock won his 200th career game during the 1929 season, becoming the third left-handed pitcher to reach that mark. He led the AL in walks per nine innings pitched in 1930 (1.151) and 1931 (1.426). Pennock pitched four innings of relief against the Chicago Cubs in the 1932 World Series, recording two saves. The New York chapter of the Baseball Writers' Association of America named him their player of the year. In 1933, serving exclusively as a relief pitcher, Pennock had a 7–4 win–loss record in 23 appearances. After the 1933 season, the Yankees honored Pennock with a testimonial dinner on January 6, 1934, and then gave him his release. Return to Boston Eddie Collins, a former teammate with the Athletics now serving as the general manager of the Red Sox, signed Pennock to their 1934 roster. In his last season pitching in the major leagues, Pennock served as a relief pitcher for the Red Sox. Pennock retired with a career record of 241 wins, 162 losses, and a 3.60 ERA. Pennock pitched in five World Series, one with Philadelphia and four with New York. He was a member of four World Series championship teams. In World Series play, Pennock amassed a 5–0 career win–loss record with three saves, becoming the second pitcher to win five World Series games, after