Jon Jones returns to win UFC heavyweight title in 1st round

Alexa Grasso, left, is helped up after defeating Valentina Shevchenko in a UFC 285 mixed martial arts flyweight title bout Saturday, March 4, 2023, in Las Vegas. (AP Photo/David Becker)

Mateusz Gamrot, bottom, pulls down Jalin Turner during a UFC 285 mixed martial arts lightweight bout Saturday, March 4, 2023, in Las Vegas. (AP Photo/David Becker)

LAS VEGAS (AP) — Jon Jones ended a three-year sabbatical from the UFC, moved up to its highest weight class and emphatically won the heavyweight belt Saturday night with a first-round submission over Ciryl Gane.