Las Vegas Raiders head coach Josh McDaniels said Thursday he didn't feel the need to give quarterback Derek Carr a heads-up that the team was taking a look at Colin Kaepernick.

McDaniels, speaking after a Raiders organized team activity, otherwise revealed little about the first known workout the free-agent quarterback has had with an individual NFL team since he last played in 2016.

"Nah, I mean, I think Derek's pretty comfortable with where he's at," McDaniels said of the recently extended Carr. "I think he knows who he is for us and I know he knows how I feel about him, how we feel about him. I don't think that's really a big thing to Derek at this point."

NFL

Las Vegas Raiders: What could Colin Kaepernick bring to the offense?

Kaepernick, 34, worked out for the Raiders on Wednesday, a source told ESPN's Adam Schefter.