Surgery was an option from the outset, but Newton opted to forego it with the hopes of a natural heal, which hasn't gone his way.
Newton could possibly return this season - if the Panthers reach the playoffs.
"He's one of the fiercest competitors I've been around during my 20-plus years in the league".
Overall, the Panthers are 5-3 this season, and in second place in the NFL South.
At the midpoint of the Panthers' 2019 season, they now sit at 5-3 overall, and are in the thick of the playoff hunt.
Newton revolutionized the quarterback position, especially for the Panthers, but questions of if he can still generate the same type of performances a decade later with a growing injury history have to be addressed.
Panthers general manager Marty Hurney said it was "impossible" to put a timescale on his recovery. Then he suffered a left midfoot sprain in the third week of the preseason. Considering Newton's current health situation and past injuries, it wouldn't be too shocking to see them move on next year. He's played 77 career National Football League games (all with the Panthers), totaling 15.5 sacks and 23 QB hits.
Known as one of the best running quarterbacks of all time, Newton had a combined five carries for minus-2 rushing yards in those games.
In his weird font style, Newton said "Charlotte & Panthers will forever be in my heart!"
Therefore, this may be the end of the Cam Newton era. He's scheduled to make $18.6 million in 2020 with a cap hit of $21.1 million. The Panthers can save $19.1 million against the cap by cutting him.