The once-rising star and Super Bowl quarterback has been unemployed since March, when he opted out of his contract and became a free agent who could sign with any team. At least three NFL clubs have openly discussed the idea of signing him, but the embattled quarterback has yet to sign a contract with training camps well underway.

He had two seasons where he was the starting quarterback for all 16 of his team's games, including the 2014 season that ended with San Francisco missing the playoffs. He suffered from a shoulder injury for half of 2015 and began the 2016 season as a backup, then started 11 games. The 49ers finished in last place for the second season in a row.
"He's very polarizing and much more in the consciences of the general population as well as sports fans and, creating, I would think, a pretty big dilemma for the NFL teams as to where he's going to go," Schafer said.
It's uncertain how history will treat Kaepernick. But just as Ali was linked to the "black power" movement, Kaepernick has become linked with the Black Lives Matter movement,Bill Russell Jersey, says Soyica Diggs Colbert, a Georgetown University professor who is writing a book on black movements.
Color of Change, an online civil rights organization, flooded Baltimore Ravens headquarters with telephone calls when the team didn't quickly sign him as it openly considered options to react to an injury.  The Los Angeles chapter of the National Action Network, which demonstrated over the weekend, says it will boycott the Rams and Chargers games at Memorial Coliseum. A change.org petition calling for a season-long boycott of the NFL has collected more than 170,000 signatures.
Supporters of former San Francisco 49ers quarterback Colin Kaepernick demonstrated outside the Los Angeles Rams' Aug. 12 preseason opener against the Dallas Cowboys, part of calls for boycotts of the upcoming NFL season. Film director Spike Lee is promoting a rally on his behalf.
Ali was convicted of draft evasion, which was later overturned, banned from boxing and stripped of his heavyweight title.
"When we think about how Black Lives Matter as a political movement gets woven into sports," Kaepernick's certainly the key figure in that conversation, she said.
"We understand the NFL is very important to you. We also understand the purpose of Colin Kaepernick's protest is FAR more important than any games you will ever watch," the petition said.
Oakland Raiders running back Marshawn Lynch sat during the anthem while Rams defensive end Robert Quinn raised his right fist during Saturday's game between the two teams.
Elie Mystal, an editor at the "Above the Law" legal commentary website, agreed with the proposed boycotts.
What started as a protest against police brutality has mushroomed a year later into a divisive debate over the future of a football player who refused to stand for the national anthem and now faces what his fans see as blackballing for speaking out in a country roiled by racial strife.
Other players who joined Kaepernick in protest are still employed. Philadelphia Eagles safety Malcolm Jenkins pledged to continue his protests this season, tight end Martellus Bennett signed a free agent contract with the Green Bay Packers and linebacker Brandon Marshall stayed with the Denver Broncos even as he lost two endorsements for kneeling during the anthem.
Kaepernick, who is white and African-American, took a stand that was unpopular among many whites, which is what boxing great Muhammad Ali did when he refused to be drafted into military during the Vietnam war.
"First of all, I want people to understand I love the military. My father was in the military. I love hot dogs like any other American. I love football like any other American, but I don't love segregation,Cheap NFL Jerseys China," he said. "I don't love riots. I don't love oppression. I don't love gender slander."
The fallout wasn't all negative: Kaepernick inspired a movement as high school athletes across the country kneeled during the anthem. Kaepernick had the 17th highest jersey sale in May and came in 39th in all merchandise from May through July 31. He's the only player in the top 50 in sales without a job.
Henry Schafer, executive vice president of Q Scores Marketing Evaluations, said Kaepernick's popularity has plummeted.
"There's a lot going on inside people's hearts right now," said Dan Rascher, a sports business professor at the University of San Francisco. "This may have been a catalyst for that even though it's not about Colin Kaepernick, but about our country and who we are."
On the opposing end of a wide range of opinions, some fans say Kaepernick shouldn't ha