EDDIE HEARN thought he was "going to have a heart attack" during the epic fight between Callum Smith and Joshua Buatsi.
Hearn was blown away by the grit and guts shown by Liverpudlian Smith, telling DAZN: "Callum Smith was unbelievable.
Hearn's heart rate was undoubtedly elevated during the epic rematch between Beterbiev and Bivol, in which the latter exacted his revenge 133 days after losing their first thriller.
And all the drama had the heart of Smith promoter Hearn racing at a million miles an hour - so much so that he became a bit dizzy.
The Brit light-heavyweight duo put on an early contender for Fight of the Year on the undercard of Artur Beterbiev's rematch with Dmitry Bivol last Saturday.
