In 1929 Wilson hit .345 with 39 home runs and a league-record 159 RBIs. He and new teammate Rogers Hornsby (who also contributed 39 home runs) led the Cubs to their first NL pennant in eleven years. In the World Series against Connie Mack's Philadelphia Athletics, Wilson's .471 hitting performance was eclipsed by two fielding errors at Shibe Park. Though trailing the Series two games to one, the Cubs were leading by a score of 8–0 in the fourth game when the Athletics mounted a 10-run rally in the seventh inning. Wilson lost two fly balls in the sun; the second, with two runners on base, led to an inside-the-park home run by Mule Haas as the Athletics won 10–8. After the game, McCarthy reportedly told a boy asking for a souvenir baseball, "Come back tomorrow and stand behind Wilson, and you'll be able to pick up all the balls you want!" The Athletics won again the next day to take the Series in five games.