Uriah Hall defeated Anderson Silva in the fourth round to win via technical knockout in the main event at UFC Fight Night in Las Vegas.

The flight marked what was likely the last one for the former UFC champion Silva. The promotion had billed the main event as Anderson's last fight.

The legendary mixed-martial artist known as 'The Spider' was non-committal about his future following the bout.

"I don't know," Silva told ESPN following the fight. "First, I go back home and go see with my team and everything. Let's see. Because it's tough to say it's my last or not. This is my air. This is what I do for my entire life and with my heart. Let's go see."

UFC President Dana White urged the 45-year-old fighter to be done once and for all.

"I made a big mistake," White said told ESPN's Brett Okamoto. "I shouldn't have let him fight this fight tonight. But out of respect for him -- he's a legend of this sport, a legend of this company -- I did something I didn't agree with. ... Anderson Silva should never fight again."