The Grudge

Floyd Mayweather Jr. and Manny Pacquiao's rivalry built up to the 2015 Fight of the Century, a clash of styles, drama, and anticipation that defined boxing supremacy.

The Blue Jays-Rangers rivalry ignited in the 2015 ALDS with Bautista's bat flip. In 2016, tensions exploded when he was hit, slid hard into second, and took Odor's brutal punch.

Hamilton and Verstappen's rivalry became one of F1's fiercest. As Hamilton chased a record 8th title, Verstappen fought for his first, igniting a brutal battle for supremacy.

Pat Riley's shocking '90s exit from the Knicks, resigning via fax to join the Heat sparked a fierce rivalry, fueling a decade of bad blood, playoff wars, and brutal clashes.