India, Dec. 8 -- Daniel Jones was ruled out of the game vs the Jacksonville Jaguars on Sunday with what appeared to be a serious Achilles injury. It was early in the game when the 28-year-old dropped to the ground and grabbed his right leg. He had to be taken off the field, straight to the locker room. Riley Leonard replaced him. At the time of writing this story, the Indianapolis Colts trailed 13-31.

NFL Insiders later revealed that Jones will undergo MRIs and other tests. If a torn Achilles is confirmed, he is likely to miss about nine months, ruling him out for this season. His first backup, Anthony Richardson, is also on the Injured Reserve list.

Jones has been pushing through a fractured bone in his left leg, though he's unsure whe...