Celtics' emerging star Jaylen Brown has a message for NFL teams.

"C'mon, don't play with me. I'm League too. Patriots, whoever need to sign me. Tell 'em I need the contract, don't play, I need mine guaranteed, or I ain't comin'." 

Here's the full video:

Well, maybe not quite, but Brown joked about playing in the NFL in a video he posted to YouTube earlier Wednesday. The video features Brown and three cousins, including Jacksonville Jaguars Pro Bowl corner A.J. Bouye, running through agility drills, culminating in a couple of sprint races between the two.

Bouye, who ran a 4.4-second 40-yard dash out of college, wins the first race easy. Brown locks in on the second sprint, but still can't outrun the All-Pro. 

Brown will use that speed as he looks to build on his sophomore NBA season, where he scored 14.5 points per game and shot 40 percent from three.