Seattle Seahawks coach Pete Carroll has a decade-long, multilevel archrivalry with former 49ers and current Michigan coach Jim Harbaugh. Carroll’s team also just picked Michigan’s Delano Hill and Amara Darboh in the NFL draft.

And when he and GM John Schneider were asked about picking from a pro-style college offense, he couldn’t help himself:

Pete Carroll mentions how great a coach Jim Harbaugh is. John Schneider looks shocked tells him "What's your deal?" #USC #Stanford #Seahawks pic.twitter.com/O84DveERP4 — Gregg Bell (@gbellseattle) April 29, 2017

“Coach Harbaugh does a great job,” he said with a smile.

The reporters busted up as they realized what Carroll had just said.

“It’s really a good scheme fit to see guys pro-style,” Carroll added as Schneider joined in laughing.

And then the highlight: Schneider hitting Carroll with the Pete-Jim rivalry’s most famous quote: “What’s your deal?”

That’s what Carroll said to Harbaugh after the latter’s relatively lowly Stanford ran up the score on the mighty Trojans. Harbaugh then repeated it.

The two developed a fascinating rivalry at the college level that then compounded when they wound up building NFC West powers. They then built Seahawks-Niners into one of the NFL’s biggest rivalries overnight, including The Alleged Bus Incident: