Hall is a 6'9", 324lb left tackle who was an undrafted free agent for the Minnesota Vikings last season. He was eventually waived by the Vikings and claimed by the Indianapolis Colts. He bounced on and off the Colts roster for a year, and was recently waived by them this past Saturday. That's when the Broncos put in a waiver claim for the 6'9 offensive tackle.
Hall will provide some extra depth at the offensive tackle position for the Broncos in the coming weeks. It's unlikely he will make it past the first series of cuts.
Here's a scouting report for Hall from NFL.com.
Rare body length and overall size. Runs his legs on contact and overwhelms lesser competition. Displays a mean streak and seeks to finish blocks. Physical football-playing temperament. Bench-pressed 225 pounds 32 times at his pro day.
Very thinly built, tends to play tall and could be challenged by the speed of NFL rushers. Raw techniqcian -- needs to learn how to replace his hands, bend from his knees and play angles. Footwork is not clean and stunts and games get on top of him too quickly (green eyes). Has limitations in space and struggles initiating contact on the second level. One-position player.
To make room for Hall the Broncos waived rookie wide receiver David Porter. Porter was an undrafted rookie out of Boise State. With the Broncos being deep at receiver, he had no chance at cracking the 53 man roster.