Colts left tackle Anthony Castonzo will miss the rest of the year due to an ankle injury, head coach Frank Reich announced. It’s a major blow to the offensive line as the team enters a make-or-break Week 17 tilt against the Jaguars. 
“You feel sick for AC going down like he did on a Thursday practice,” quarterback Philip Rivers said (via ESPN.com’s Mike Wells). “Maybe it was a matter of time before something happened. He’s had a heck of a year, a big part of what we do offensively, run game and pass protection. He’ll be missed.”
Castonzo is set for surgery, taking their long-tenured starter out of the lineup. When healthy, the Colts’ offensive line has been their greatest strength, thanks in large part to Castonzo. He’s anchored the blindside since his rookie year in 2011, showing consistency and durability for much of his pro career. Though Castonzo has never made the Pro Bowl, he’s started in all 144 of his games with quality performances.
In 2019, the Boston College product graded out as Pro Football Focus’ No. 7 ranked tackle in the league. And, his 81.3 overall score was even stronger than his 2017 and 2018 showings. He still has plenty of football left in the tank, though he’s got just one non-guaranteed year left on his deal, which carries a $16MM cap hit.
Right tackle Chaz Green, who has struggled on the left side in the past, could be tasked with snaps on the blindside.
Chaz Green, as well as Holden and Webb, “struggling” is a massive understatement.
And AC may call it quits as he almost did the prior offseason.
Colts could look to go back to the Buckner type well and deal their #1 to a cap strapped team with an expensive left tackle…