Washington (CNN) President Donald Trump said Friday that athlete and activist Colin Kaepernick, a former quarterback for the San Francisco 49ers who's now a free agent, should be allowed an opportunity to play again in the National Football League — but "only if he's good enough."

"Frankly, I'd love to see Kaepernick come in — if he's good enough," the President told reporters at the White House on Friday. "But I don't want to see him come in because somebody thinks it's a good PR move. If he's good enough, he will be in."

On Wednesday, Kaepernick posted a video on his Twitter account of him working out to show that he's ready to play again if given the chance.

Trump added that he knows many of the NFL team owners.

"If he's good enough, they'd sign him," Trump said. "So if he's good enough, I know these people, they would sign him in a heartbeat. They will do anything they can to win games."