AL WC factoids, thanks to Doug Kern's Twitter.
First-Inning Home Run For Red Sox In A Winner-Take-All Game
Nomar Garciaparra off Charles Nagy (Cleveland), 1999 ALDS 5
David Ortiz off Kevin Brown (Yankees), 2004 ALCS 7
Dustin Pedroia off Matt Garza (Rays), 2008 ALCS 7
Xander Bogaerts off Gerrit Cole (Yankees), 2021 ALWCRed Sox Hitting A Multi-Run Homer In First Inning Of A Postseason Game Against Yankees
John Valentin off Roger Clemens, 1999 ALCS 3
David Ortiz off Kevin Brown, 2004 ALCS 7
J.D. Martinez off J.A. Happ, 2018 ALDS 1
Xander Bogaerts off Gerrit Cole, 2021 ALWCXander Bogaerts also homered in the first inning of 2017 ALDS 4 (Astros).