What happened: Thompson defeated Radtke via technical knockout in the third round at Madison Square Garden. The welterweight bout marked the final scheduled appearance of his professional career.
Why it matters: The walk-off finish completed the final obligation on Thompson's promotional deal after previously noting he had one fight left on UFC contract. The victory snaps a losing stretch and provides a definitive conclusion to his 14-year UFC tenure.
By the numbers: Thompson finishes his mixed martial arts career with an 18-9-1 record following the stoppage at 2:54 of Round 3.
What to watch: UFC 334 action continues in New York with Ciryl Gane facing Josh Hokit in the main event.