Highly touted prospect Javier Baez homers in his major league debut for the Cubs, leading off the 12th inning against Boone Logan of the Rockies, to lead his team to a 6 – 5 win.

On August 5, 2014 — Highly touted prospect Javier Baez homers in his major league debut for the Cubs, leading off the 12th inning against Boone Logan of the Rockies, to lead his team to a 6 – 5 win.

Source:
Baseball Reference August 5
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game