Frank Ernaga from the Chronology

May 24, 1957 - In his first two ML at-bats‚ Cubs rookie Frank Ernaga hits a solo HR in the 2nd inning and follows with a run-scoring triple in the 4th‚ both against Warren Spahn. The Cubs beat the Braves 5-1 at Wrigley Field. Ernaga is the second NL rookie to debut with a triple and homer; he will add just one more HR to his ML career total.