Posted by ESPN.com's Bill Williamson
UPDATE: Denver cut offensive lineman Dylan Gandy to make room for Chad Mustard.
Mustard has been with Denver on and off for the past season. He is more of a blocking tight end. With Mustard coming in, the Broncos will have to release a player from the 53-man roster.
It is not known at this point how long Scheffler will be out. Scheffler told reporters in Denver's locker room today he doesn't believe the injury is overly serious. But he did say he doesn't think he will play against visiting Jacksonville on Sunday.