Bob Costas calls Guardians pitcher 'Justin Bieber,' has great reaction – NBC Sports Chicago

Sports Commentator Mixes Up Pitcher Shane Bieber With Justin Bieber

Bob Costas calls Shane Bieber 'Justin,' Ron Darling has funny response

Bob Costas mistakenly calls Guardians pitcher Justin Bieber: 'I vowed that would not happen

Bob Costas calls Shane Bieber 'Justin,' Ron Darling has funny response

Guardians-Yankees: Bob Costas accidentally calls Shane Bieber 'Justin

Sports Commentator Mixes Up Pitcher Shane Bieber With Justin Bieber

Justin Bieber is named at the baseball in commentator blunder

Bob Costas calls Shane Bieber 'Justin,' Ron Darling has funny response

Bob Costas stunned after mistaking Justin Bieber & Shane Bieber

Bob Costas makes Justin Bieber blunder during Yankees-Guardians Game 2

Bob Costas stunned after mistaking Justin Bieber & Shane Bieber

Justin Bieber just threw his 84th pitch - Emmy Award-winning sportscaster Bob Costas hilariously slips up, calls All-Star Shane Bieber, pop star Justin Bieber