The Patriots and starting right tackle Marcus Cannon agreed to a five-year contract extension, according to Mike Reiss and Field Yates of ESPN.com (Twitter link). Cannon was scheduled for free agency after the season. Cannon’s deal is for five years and $32.5MM, according to Albert Breer of The MMQB (on Twitter). The deal includes $14.5MM guaranteed. 
Heading into this past offseason, Cannon was actually thought to be on the roster bubble. That lit a fire under the 28-year-old and motivated him to drop a good deal of excess weight. Playing fitter and meaner than ever before, Cannon has delivered his best season in some time and has started in every game he has been available for. He has been more than a capable fill-in for the injured Sebastian Vollmer.
Cannon has earned an 83.3 overall grade from Pro Football Focus with slightly higher marks for his run blocking than his pass blocking. In his 670 snaps, he has established himself as a top 20 tackle in the league this year, per PFF. Teammate Nate Solder, with a 83.1 overall grade, is right behind him.
The TCU product has been with the Pats since 2011 when he was taken in the fifth round. New England will now have him locked up for the remainder of his prime.