The boxing rivalry between Nigel Benn and Chris Eubank was marked by deep animosity. Benn declared, "I personally do hate him," at the contract signing for their 1990 middleweight fight. Eubank, who refused to look at Benn, went on to stop Benn in the ninth round to claim his WBO title.
Their 1993 rematch at Old Trafford drew 43,000 spectators and 16.5 million UK television viewers, ending in a draw. The two have since reconciled and fallen out multiple times.
In Formula One, the feud between Nelson Piquet and Nigel Mansell was particularly bitter. Piquet called Mansell "an uneducated blockhead" and made offensive comments about Mansell's wife. Their focus on their own battles in 1986 reportedly allowed Alain Prost to win the drivers' championship.
Football also saw an intense rivalry between managers Pep Guardiola and José Mourinho during their time in La Liga. Mourinho accused UEFA of favouring Guardiola in 2011 and later suggested Guardiola's baldness indicated he "doesn't enjoy football." Guardiola, in turn, called Mourinho "the fucking boss" of the press room.