It was a night of upsets Friday evening in Atlanta with for 2021 heavyweight champion Bruno Cappelozza coming up short against Mattheus Scheffel and Anthony Pettis tapped by a crazy submission at PFL 5. Scheffel came into the main event as a substantial underdog, having been knocked out in his PFL debut back in April. But “Buffa” delivered one of the best performances of his career, out-gunning Cappelozza in a three-round war. Cappelozza and Scheffel spent almost the entirety of the fight on the feet with each man having their moments, but it was the power and volume of Scheffel…