CBS is giving a twist to the network arms race — as in, accumulating arms that used to throw NFL flags.

It’s getting a double threat.

CBS Sports announced Tuesday that the network will be adding former NFL and NCAA basketball referee Gene Steratore to its broadcast team as a rules analyst for NFL on CBS and college basketball, including the NCAA Tournament.

“Gene has long been one of the most respected referees in the NFL and college basketball,” Chairman of CBS Sports Sean McManus said in a release. “He has officiated both at their highest levels, including last year’s Super Bowl, and will be a great addition to our team.

“His strong communication skills combined with his knowledge of the rules will allow him to quickly interpret and explain the calls, giving viewers a better understanding of the rules and enhancing our overall coverage.”

Steratore was the fourth NFL official — the second in the last week alone — to retire from the profession this offseason. NBC recently hired Terry McAulay as its analyst, while ESPN went with Jeff Triplette. Ed Hochuli was the other to retire.

Three of the four networks with NFL rights have added rules analysts within the last week. The only one that did not, Fox, already has two in Mike Pereira and Dean Blandino. CBS previously had former NFL referee Mike Carey in the role, but he was let go after two underwhelming seasons (2014-’15).

After 15 years on the field as an official in the NFL, the 55-year-old Steratore is set to provide rules analysis from the CBS Broadcast Center in New York on Sundays throughout the season. Steratore also will appear in the booth for CBS’ Thanksgiving Day game along with playoff coverage that includes Super Bowl LIII.

The Pennsylvania native was also an official in college basketball, primarily in the Big Ten, for the past 20 years.

“I’m excited to join CBS Sports and start the next chapter in my career. Officiating runs in my family. It started with my father, who refereed college football and basketball for more than three decades,” said Steratore, who first entered the NFL as a field judge in 2003. “I wanted to follow in his footsteps and began officiating when I was 19 years old. I’ve had an amazing run, capped off by working the Super Bowl, but it’s time to hang up my whistle for a new challenge.

“This is an incredible opportunity to continue working on the two sports I love – NFL football and college basketball – and help viewers gain a better understanding of the rules of the game and how they are applied.”