The Mannings don’t mess around.

Former Giants quarterback Eli Manning reminisced on the days when he would play catch with his nephew, Arch Manning — the No. 1 prospect in the 2023 class, who committed to the University of Texas — and it sounded quite painful.

“I think my first catch with him, he was like four years old,” Eli, a two-time Super Bowl champion, recalled in an interview with People. “I’m just drilling balls at him and bouncing off so he didn’t cry.

“I had to toughen him up, and make sure he was tough enough to handle this.”

Eli — who spent his entire NFL career with the Giants following a standout career at the University of Mississippi —shared the advice he’d tell his 18-year-old nephew about entering his freshman year.

“Be there, learn from the guys ahead of you, take mental reps during practice and during the games,” Eli said, as well as “always being ready to go out there and play.”

Above all, Eli wants Arch to “just enjoy being in college.”

As for whether the former Super Bowl MVP will attend Longhorns games to see Arch in action?

“I think we’ll wait to see how the schedule plays out, if he gets into any games… wait to see when he might be playing,” Eli said.

“If that’s this year or next year, [I’ll] plan from there.”

Arch grew up surrounded by quarterback legends and will follow in his family’s footsteps with the Longhorns when the college football season kicks off in September.

The teenager is the nephew of Eli and Peyton Manning and the grandson of Archie Manning Sr. — who played for the Ole Miss Rebels at the University of Mississippi, and was inducted into the College Football Hall of Fame in 1989.

Arch was a star quarterback at Isidore Newman High School in Louisiana.

The prodigy decided to graduate early in December and enroll in Texas in January to begin his college football career.

“Graduating early, it’s definitely been a great head start for me,” Manning said during his first spring practice in March. “[Strength] coach [Torre] Becton and his staff have been very helpful.

“I’ve gotten bigger, faster, and stronger. He’s going to push you, and he wants what’s best for you. He asks you the first day you’re here, what do you want to do and what are your goals? He’s going to help you get there. That’s his job. He’s the best.”

Arch is expected to sit behind standout sophomore Quinn Ewers at least to start the season.