Kaepernick was reportedly invited by players to attend a meeting on October 17, but did not attend because he didn't want to be a distraction.
Kaepernick himself has been out of a National Football League job this season.
The quarterback started kneeling during the national anthem last season to protest police brutality and racial inequality.
Since his initial kneeling stance a year ago, several more NFL players have knelt or raised a fist during the national anthem in protest against the same issues Kaepernick was trying to bring attention to.
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Former 49ers quarterback Colin Kaepernick, whose protests last season during the national anthem to raise awareness about social justice and race-related issues set off a nationwide debate filled with acrimony, is expected to join a group of current and former players meeting next week with NFL owners in NY.
"We look forward to him joining the conversation", Lockhart said. That meeting included 13 current or former players, plus 11 owners and representatives from the league and the NFL Players Association. Kaepernick filed a grievance against the 32 National Football League owners on October 15, accusing them of colluding to keep him out of the National Football League this season. ESPN reports that he is not working through the NFLPA, but has hired high-profile lawyer Mark Geragos to represent him. It was not clear if the former quarterback would attend the meeting. However, NFL Commissioner Roger Goodell said that he hopes the number of players who decide to protest would drop to "zero".