Being a Cowboy must run in the family.

As teams begin to sign undrafted players to contracts, hoping to find a diamond in the rough, the Dallas Cowboys signed the son of one of their all-time greats.

The Cowboys agreed to terms with undrafted free agent Larry Allen Jr., per the team's official website.

The offensive lineman from Harvard is the son of Hall of Fame guard Larry Allen, a seven-time first-team All-Pro, and arguably the best O-lineman in Cowboys history.

The 6-foot-3 Allen Jr. was a two-time first-team All-Ivy League guard in college, including 2018.

His father was drafted by Dallas 25 years ago as a second-round pick from Sonoma State (Calif.) in 1994. Allen went on to become the most decorated lineman in team history, earning 10 Pro Bowls with the Cowboys, playing mostly guard, but one season at tackle. He earned an 11th Pro Bowl selection with the 49ers.

He signed a one-day contract with Dallas in 2008 to officially retire with the team. He was inducted into the Cowboys' Ring of Honor in 2011 and then into to the Hall of Fame in Canton, Ohio in 2013.

The Cowboys have yet to officially announce the names of their rookie free agents, but have agreed to terms with a few players already, including Kansas defensive end Daniel Wise, Kentucky cornerback Chris Westry, Clemson offensive tackle Mitch Hyatt and North Texas wide receiver Jalen Guyton.

They will officially sign next week before Dallas' rookie minicamp on May 9-11.