Andrew Luck won’t have starting LT Anthony Castonzo on the field any time soon

If Andrew Luck is going to have a successful comeback bid in 2018, then the Indianapolis Colts will have to be able to protect him. Things aren’t going swimmingly on that front already, as starting left tackle Anthony Castonzo re-injured his hamstring on Friday and doesn’t appear to be in line to return any time soon.

Castonzo opened up training camp on the non-injury football list before being taken off the NFI list on August 1. He had previously injured his hamstring working out on his own, according to ESPN’s Mike Wells, who noted “the news isn’t good” regarding this latest setback.

Wells also wrote, “Not having Castonzo to protect quarterback Andrew Luck’s blindside could impact how much Luck plays in the preseason.”

For what it’s worth, head coach Frank Reich recently said Luck should play about a quarter during the team’s first preseason game against Seattle Thursday night.

While Castonzo remained out prior to being taken off the NFI list last week, recent free agent signee J’Marcus Webb had been working with the first-team offense. He has 43 games worth of starting experience over the course of his seven-year career, but it’s worth noting he didn’t play a single down last year after being suspended the first four games of the season.

Castonzo has been one of the better offensive linemen on Indianapolis’ roster since being selected in the first round of the 2011 NFL Draft out of Boston College. Since then, he’s tallied 105 starts, all of them coming at the left tackle spot.