Seattle Seahawks strong safety Kameron Chancellor took to Twitter on Sunday, expressing the realities stemming from his career-threatening neck injury from last season, which prompt speculations of his retirement.

The 30-year-old suffered a career-threatening neck injury last season and said in May that he would continue playing if his health permitted.

On July 2, Chancellor tweeted, “To walk away from the game by choice is one thing, to walk away from the game because of the risk of paralysis is another”.

He added to his social media statements, stating how the “final test” of his injury “showed no healing.”

“I’ve played through all types of bruises and injuries at a high level. But this one, I just can’t ignore,” he tweeted.

Chancellor, a four-time Pro Bowler, missed the final seven games of last season after he was injured while making a tackle late in a November win over the Arizona Cardinals.

Known for his hard-hitting as part of the Seahawks’ famed “Legion of Boom” defense, Chancellor signed a three-year, $36 million extension last summer.

With a salary of $6.8 million in 2018, he also became fully guaranteed in February. Notably, $5.2 million of his $10 million payroll for 2019 is guaranteed for injury.

By retiring, Chancellor could potentially forfeit those guarantees, though a settlement would be negotiated.