Former heavyweight titleholder Charles Martin will step back into the ring on Saturday for the first time since his hard-fought loss to Jared Anderson in the summer of 2023.

The 38-year-old Martin will headline an eight-round fight at the Fox Theatre in Redwood City, California, after weighing in at 251.2lbs on Friday. His opponent, 43-year-old Matthew McKinney, tipped the scales at 296.2lbs.

Martin, 29-4-1 (26 KOs), will be aiming to rebuild momentum after dropping a unanimous decision to Anderson. McKinney, 17-3 (13 KOs), is coming off a win in July and seeking to extend his late-career run.

Full weigh-in results are as follows:

Heavyweight – eight rounds

Charles Martin (251.2lbs) vs. Matthew McKinney (296.2lbs)

Lightweight – six rounds

Malikai Johnson (132.0lbs) vs. Juan Centeno (131.6lbs)

Lightweight – six rounds

Jalen Walker (135.6lbs) vs. Andrew Rodgers (136.4lbs)

Junior bantamweight – four rounds

David Delgado (115.0lbs) vs. Corian Hawkins-Powell (114.2lbs)

Welterweight – six rounds

Jacob Macalolooy (146.8lbs) vs. Jose Marruffo (145.8lbs)

Junior welterweight – four rounds

Kevin Montano (139.6lbs) vs Ebert Diaz (139.2lbs)

Middleweight – four rounds

Dante Kirkman (157.2lbs) vs Jose Adolfo Madrigal Rodriguez (156.4lbs)

Heavyweight – four rounds

Jett Blackwell (258.6lbs) vs Robert Salinas (292.2lbs)