HR No. 43. That's when PCA broke Billy Williams' Cubs record for home runs by a left-handed hitter — a record that had stood since 1970. Then he hit No. 44 in the same game. 3-for-4. 3 RBI. 3 runs. Cubs 8-4. Season: 44 HR / 37 SB. #Cubs #GoCubs #FlyTheW