Why Stephen Thompson is retiring from the UFC at 43

A recent development in Stephen Thompson’s personal life greatly influenced his decision to retire.

By Sayan Nag · Sherdog

Published: Tuesday, 10 November 2026 at 2:21 AM

Key Things to Know

Stephen Thompson is retiring from the UFC due to fatherhood and wanting to avoid serious physical damage.
Thompson will fight Charles Radtke in his final UFC appearance at UFC 334 on Nov. 14.
The 43-year-old revealed that the birth of his five-month-old daughter changed his career mindset.

The Story in 60 Seconds

Stephen Thompson announced he will retire from MMA following his bout against Charles Radtke at UFC 334 on Nov. 14 at Madison Square Garden. The 43-year-old fighter explained that his decision is driven by the desire to avoid serious damage against younger competitors and the recent birth of his five-month-old daughter.

Thompson stated he no longer envisions contending for the title and that becoming a father shifted his mindset. Over a 14-year UFC tenure, "Wonderboy" achieved notable victories against Robert Whittaker and Jorge Masvidal, while also challenging Tyron Woodley for the welterweight championship.

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Why Stephen Thompson is retiring from the UFC at 43

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