11:58 AM PT -- The MLB has announced it has suspended Boone one game -- plus an undisclosed fine -- for his epic rant against umpire Brennan Miller.
Boone will serve his ban Friday night when the Yankees take on the Colorado Rockies.
Yankees manager Aaron Boone FLIPPED OUT on an umpire Thursday ... and the whole rant was caught on a hot mic -- it was EPIC!!!
It all went down in the 2nd inning of the Yanks-Rays game in NY ... when Boone began chirping at home plate ump Brennan Miller over balls and strikes.