Yes, my biggest game, but not my best game. My best game is when I drive in the winning run.
Source, in full
Bemoaning his wasted 3-home run/7-RBI performance of May 15, 1967; as quoted in “Biggest Game Wasted: Roberto Collects 3 HRs, 7 RBIs As Bucs Lose, 8-7” by Les Biederman, in The Pittsburgh Press (Tuesday, May 16, 1967), p. 34