The right tackle spot has been a question mark for the Patriots pretty much throughout the season. Isaiah Wynn has been the starter when healthy, but has been replaced in four of his seven starts. In three of the last four games he’s played, the player replacing him has been 34-year-old veteran Marcus Cannon.

This week, the Patriots may not have that option. Cannon was added to the team’s injury report on Thursday as a non-participant due to a concussion. It hasn’t been reported how Cannon, who took part in practice and wasn’t listed on the injury report on Wednesday, suffered the concussion.

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While Cannon hasn’t been the player he was during his prime years for the Patriots, he’s held his own when on the field this year. Losing him could be a big blow for an offensive line that has had to work around Wynn’s inconsistency this season. In particular, Wynn has committed a league-high eight penalties this year, despite not dressing for one game and playing only parts of four of the other seven.

If Cannon can’t go and Wynn struggles on Sunday against the Colts, the team would likely need to turn to Yodny Cajuste at right tackle. Cajuste showed some flashes during training camp, but began the season on the bench, then landed on IR with a thumb injury. He was active for the first time since last week, but didn’t see the field.

Cannon was one of four Patriots who missed practice on Thursday. Running back Damien Harris (illness), wide receiver DeVante Parker (knee), and center David Andrews (concussion) were all out for the second day in a row.

In addition to those four players, the Patriots also had five listed as limited on Thursday. Running back Pierre Strong Jr. (hamstring), defensive linemen Christian Barmore (knee) and Deatrich Wise (ankle), linebacker Josh Uche (hamstring), and safety Kyle Dugger (ankle) are all listed for the second day in a row.

In some good news for the Patriots, three players were removed from the report after being listed on Wednesday. They are safety Devin McCourty (not injury related), who didn’t practice on Wednesday, as well as safety Adrian Phillips (shoulder) and special teamer Matthew Slater (hamstring), who were limited.

As for the Colts, All-Pro running back Jonathan Taylor (ankle) didn’t practice for the second day in a row, putting his status for Sunday’s game in doubt. Starting left tackle Dennis Kelly (calf/ankle) has also missed both days of practice this week. If he can’t go, rookie third-round pick Bernhard Raimann would likely start in his place. Indianapolis did upgrade cornerback Stephon Gilmore (ribs) to a full participant after he missed practice on Wednesday.

Alex Barth is a writer and digital producer for 985TheSportsHub.com. Any opinions expressed do not necessarily reflect those of 98.5 The Sports Hub, Beasley Media Group, or any subsidiaries. Thoughts? Comments? Questions? Looking for a podcast guest? Let him know on Twitter @RealAlexBarth or via email at abarth@985TheSportsHub.com.