Bugner was not aggressive enough or defense savvy enough...the differeance here is the power punching,foreman backs him up and Bugner goes into cruise mode and eventually gets stopped by round 7.foreman jab simply paints him and forces Bugner to mentally lose the fight by round 4.
Foreman by UD with Bigner frustrating him along the way. I believe they were scheduled to fight in 1977 but Foreman retired. That fight would have been close. Bugner was unlucky imo not to get the decision against Lyle.
Foreman crushes him, Bugner is just a big target for Foreman, he can’t keep him off, but also not nimble enough to stay away.