Raiders coach Jon Gruden 'surprised' Colin Kaepernick still unsigned

"I am surprised he's not in camp with somebody. He probably will be soon," Gruden said Tuesday.

As offseason workouts draw closer, Colin Kaepernick still remains unsigned.

During Tuesday's coaches breakfast at the NFL Annual Meeting in Orlando, Fla., Raiders coach Jon Gruden offered some insight as to why the controversial quarterback doesn't have a team.

"I think there's a lot of intrigue there," Gruden said, via ESPN. "His performance on the field wasn't very good, on tape. I think, Robert Griffin, a rookie of the year, [I'm] surprised he's out there. Tim Tebow takes a team to the playoffs, there's some surprise that he never came back. You know, Johnny Manziel, he's out there.

"Back to Kaepernick, he got beat out by [Blaine] Gabbert to start the [2016] season. I think that says something. [But] I am surprised he's not in camp with somebody. He probably will be soon."

Former 49ers quarterback Blaine Gabbert, who was traded to San Francisco in 2014, signed a deal with the Titans earlier Tuesday after a brief stint with the Cardinals in 2017.

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Kaepernick last played during the 2016 season and has been jobless since opting out of his contract with the 49ers last March. He was spotted working out in the Houston area earlier this month as the NFL new year kicked off.

Despite his efforts to stay in shape, Kaepernick remains seemingly blackballed after sparking a league-wide movement when he kneeled during the national anthem to protest social injustice and police brutality.