Matt Brown, who has the second-most knockouts in UFC history, calls it a career

UFC welterweight Matt Brown is hanging up the gloves after 30 career octagon appearances.

Brown (24-19 MMA, 17-13 UFC) took to social media on Saturday and announced he’s retiring from MMA competition following a nearly 19-year career that began with his October 2018.

According to "The Immortal," who turned 43 in January and hasn’t fought since a first-round knockout of Court McGee at UFC on ABC 4 in May 2023, he is leaving active competition to focus on other ventures in his career.

Brown exits the sport with 13 career UFC knockouts, which are second-most all-time in company history behind Derrick Lewis (14).

The American also has 15 stoppage wins under the UFC banner, which are most in welterweight history and tied with Dustin Poirier for fourth-most in promotional history behind only Charles Oliveira (20), Jim Miller (18) and Donald Cerrone (16).

Brown, who joined the UFC roster in June 2008 following a stint on Season 7 of "The Ultimate Fighter" reality series, has notable wins on his resume including Stephen Thompson, Mike Swick, Tim Means and Diego Sanchez.