Sean Strickland upset Israel Adesanya at UFC 293.
Strickland dominated in the first round with a powerful combination.
Adesanya was in trouble and turned his back during the fight.
Strickland maintained relentless forward pressure.
Adesanya couldn't find his rhythm or use his dynamic striking.
Strickland's effective boxing stance and jabs caught Adesanya off guard.
Strickland won by unanimous decision (49-46).
Strickland expressed disbelief at his career achievement in the post-fight interview.