With the Toronto Blue Jays struggling in last place and mired in a five-game losing streak, manager Carlos Tosca is fired and replaced by first-base coach John Gibbons.

On August 8, 2004 — With the Toronto Blue Jays struggling in last place and mired in a five-game losing streak, manager Carlos Tosca is fired and replaced by first-base coach John Gibbons.

Source:
Baseball Reference August 8
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game