Sean McVay's unusual grumpy mood during the Rams' draft night press conference finally has an explanation—and it has nothing to do with the team's selection of Ty Simpson. The typically energetic head coach appeared dejected and disinterested while fielding questions alongside general manager Les Snead, a stark contrast to his usual excitement on such a big night.

NBC Sports' Chris Simms, who spent time with McVay at an Arsenal match in London this week, got the inside scoop. According to Simms, McVay revealed that his sour demeanor stemmed from a "volatile situation" that occurred just before the press conference, which Simms described as a "little argument."

"What he did tell me was the reason he, in the press conference, was pissed off had neither to do with him acting or the pick, but had to do with some sort of volatile situation that happened before they went out there," Simms shared. "There was some little argument about something. He assured me it was nothing major, but he was a little peed off."

While Simms didn't provide further details—and it's likely McVay didn't either—the revelation clears up weeks of speculation. Since the draft, McVay has made countless media appearances to affirm his full support for Simpson, with Snead and offensive coordinator Mike LaFleur also confirming McVay's long-standing interest in the player.

Whatever sparked the pre-press conference tension appears to be ancient history now. McVay and Snead were in good spirits for the remainder of draft weekend, proving that even the best coaches can have an off moment on the biggest stage. For Rams fans, it's a reminder that behind every draft pick is a human story—and sometimes, a little argument.