An adviser to Colin Kaepernick says he has been contacted by three teams inquiring about quarterback since the free-agency period began in March.

Harry Edwards, a renowned sociologist and civil rights activist who has mentored Kaepernick, says teams have asked him about Kaepernick's desire and ability to play.

"They've asked, 'Can he play? Does he want to play?'" Edwards said. "The last question I can't answer. The first question, absolutely. If Kaep makes up his mind, he wouldn't only go in and make a team, he'd put pressure on somebody to start."

Kaepernick, 29, remains unsigned since opting out of his contract with the San Francisco 49ers on March 1.