Colin Kaepernick has yet to sign with a team this season and Cleveland Cavaliers forward LeBron James is fed up with the NFL.
Kaepernick was dubbed the leader of the silent protests sweeping through the NFL this season, featuring players kneeling during the national anthem.
James has echoed the opinion of many that Kaepernick's decision to start the kneeling last year has kept him off NFL rosters this season.
"I love football, but I'm not part of the NFL," James said Sunday, via ESPN. "I don't represent the NFL. I don't know their rules and regulations. But I do know Kap is getting a wrongdoing, I do know that. Just watching, he's an NFL player.
"He's an NFL player and you see all these other quarterbacks out there and players out there that get all these second and third chances that are nowhere near as talented as him. It just feels like he's been blackballed out of the NFL. So, I definitely do not respect that."
"The only reason I could say he's not on a team is because the way he took a knee," James added. "That's the only reason. I watch football every Sunday, every Thursday, every Monday night. I see all these quarterbacks – first-string, second-team, third-team quarterbacks – that play sometimes when the starter gets hurt or are starters that play. Kap is better than a lot of those guys. Let's just be honest."
Kaepernick last played for the San Francisco 49ers in 2016, when he completed 59.2 per cent of their passes for 2,241 yards, 16 touchdowns and four interceptions.
James had previously mentioned that he would sign Kaepernick if he owned an NFL team, but he furthered that statement Sunday.
"I've commended Kap, and for him to sacrifice everything for the greater good for everyone, for what he truly believed in, the utmost respect to him," James said.
"Obviously he had a vision like Martin Luther King and like some of our all-time greats that people couldn't see further than what they were doing at the point and time."
|Everton give new deals to Calvert-Lewin, Holgate & Kenny|
|Gooch backs Cook to rediscover England form|
|Itoje could return before Six Nations|
|Under-fire Hughes promises results will come for Stoke|
|Mourinho asked to explain pre-Manchester derby comments|
|Stoger sets Dortmund end of year target|
|Dyche: No swaggering from high-flying Burnley|
|Watzke plays down Nagelsmann rumour as Dortmund plan for 2018|
|Guardiola´s record runs with Manchester City, Bayern Munich and Barcelona compared|
|Martin lashes out at ´double standards´ in Froome ´scandal´|
|Day two crucial for England´s Ashes chances - Gooch|
|Benteke goal drought a concern for Hodgson|
|Nibali to skip 2018 Giro to focus on Tour|
|City look frightening – Rose|
|Kahn regrets rejecting Manchester United|
|Ireland scrum-half Marmion commits to Connacht|
|Giants president Mara wants Manning back for 2018|
|Malan pleased to silence the doubters with maiden century|
|No Australia involvement in fixing allegations - Paine|
|Bayern wrapping up Ribery for Christmas|
|Wilshere no closer to signing fresh Arsenal contract|
|Resurgent Rooney has Europe´s best shot-conversion record|
|Froome fears salbutamol stigma for asthma sufferers|
|Pastore bullish over PSG chances against Madrid|
|Paine calls on Australia to trigger England collapse|
|Independiente boss overjoyed by ´dream´ Copa Sudamericana success|
|Malan ´over the moon´ with first Test century|
|Silva is an animal - Guardiola|
|The Ashes Round-up: Malan´s maiden hundred steals the show|
|Malan and Bairstow shine as England prosper in Perth|
|Hewitt to come out of retirement at Australian Open|
|Wenger not blaming Sanchez for Arsenal´s goal woes|
|I haven´t broken any rules - Froome believes legacy remains untainted|
|Stokes finds form with 93 off 47 balls|
|Mourinho can´t find room for misfiring Mkhitaryan|
|De Grandhomme to miss ODI series following death of his father|
|Aggressive Aussies dismiss Stoneman and Root in eventful session|
|Thunder lift George in return to Indiana, Celtics bounce back|
|Stoneman targets Aussies in exciting start to Perth Test|
|Guardiola tells fans Man City won´t stop after record-breaking win|
|George has ´closure´ as Pacers continue to rise|
|Rodgers ´not coming back to save´ Packers|
|Angels manager Scioscia has no concerns about Ohtani´s elbow|
|Mirabelli: Donnarumma has to beg Milan if he wants to leave|
|ICC: No evidence to suggest Ashes Test has been corrupted|
|Marsh comes in for Handscomb as England bat first in Perth|
|Bayern lacked verve, says Heynckes|
|Di Maria wants more game time at PSG after goalscoring display|
|Monaco stay unbeaten, Ludwigsburg crush PAOK|
|Fixing allegations ´of serious concern´ to Cricket Australia|
|Gattuso: Donnarumma shaken by abuse from AC Milan fans|
|Pellegrino calls for Southampton reaction|
|Benitez ´needs to know´ extent of Newcastle´s transfer budget|
|Zidane will not request striker signing despite Benzema blanks|
|Bournemouth excellent in Old Trafford loss – Howe|
|Wilshere´s performance ´very positive´, says Wenger|
|Pochettino challenges Spurs to keep top-four berth|
|I´d be in Brazil if the title race was over – Mourinho|
|It was hard to watch - Clement wowed by City´s dominance of Swansea|
|Bailly may require surgery on ´serious´ ankle injury|
|Klopp uncertain on Solanke´s disallowed goal|
|Guardiola sure record-breaking City won´t get complacent|
|Puel focuses on Leicester win, not Southampton revenge|
|Strasbourg 2 Paris Saint-Germain 4: Revenge is sweet for Emery´s men|
|Tottenham 2 Brighton and Hove Albion 0: Aurier scores a fluke as Spurs go fourth|
|West Ham 0 Arsenal 0: Wasteful Gunners drop points for third game in a row|
|Liverpool 0 West Brom 0: More frustration for Klopp as hosts draw again|
|Manchester United 1 Bournemouth 0: Lukaku eases scoring concerns after derby day woes|
|AC Milan 3 Verona 0: Bonaventura shines as Gattuso´s side march on|
|Manchester City set new Premier League winning streak|