Getty Images Colts quarterback Andrew Luck will be without his left tackle again this week. Via Stephen Holder of The Athletic, the Colts have already ruled left tackle Anthony Castonzo out for this week’s game against Washington. Colts coach Frank Reich said Castonzo had a “minor setback” in his recovery from a hamstring problem, but that it didn’t appear to be so serious that putting him on injured reserve is a consideration. Castonzo began camp on the non-football injury list. He returned to practice and aggravated the problem shortly thereafter and didn’t play in the preseason. Joe Haeg started in his place last week, moving over from his right tackle spot. J'Marcus Webb started at right tackle last week, but he’s on IR now, leaving the Colts scrambling a bit. The Colts have also ruled defensive lineman Denico Autry, cornerback Chris Milton and offensive lineman Denzelle Good out for Sunday’s game.<doc-sep>Left tackle Anthony Castonzo and running back Marlon Mack are inactive for the Indianapolis Colts. Aug 25, 2018; Indianapolis, IN, USA; Indianapolis Colts quarterback Andrew Luck (12) drops back to pass against the San Fancisco 49ers in the first half at Lucas Oil Stadium. Mandatory Credit: Thomas J. Russo-USA TODAY Sports Castonzo, who battled a hamstring injury most of the month of August, attempted to practice with the team this week but was unable to pass a pregame test of the strained muscle. Quarterback Andrew Luck is returning from a season-long absence behind a shaky offensive line against a defense known for its four-man pass rush. Mack is also out with a hamstring injury. He also attempted to practice late in the week and work out before Sunday’s opener against the Cincinnati Bengals. -- Titans without OT Conklin Tennessee Titans offensive tackle Jack Conklin is inactive for Sunday’s game at Miami. Conklin is returning from a torn ACL suffered at New England in January and came off the physically unable to perform list last week. The Dolphins are without top wide receiver DeVante Parker (finger). Slideshow ( 4 images ) -- RG3 inactive, Jackson No. 2 QB for Ravens Robert Griffin III was among the Ravens’ inactives for the Week 1 game in Baltimore against the Buffalo Bills on Sunday. Griffin made the final 53-man roster despite being in a crowded QB room led by Joe Flacco and Lamar Jackson, who was a first-round pick in April and is the backup. Buffalo scratched veteran cornerback Vontae Davis (coach’s decision). -- Panthers TE Olsen set to face Cowboys Carolina Panthers tight end Greg Olsen will play in Sunday’s game against the Dallas Cowboys . A team official told NFL Network on Sunday morning that Olsen is good to go. He was added to the injury report on Saturday and was listed as questionable with a back injury. With the Panthers already thin at the position, losing Olsen likely would lead to major alterations in the team’s game plan against the Cowboys, who visit Bank of America Stadium for the regular-season opener on Sunday. Ian Thomas likely would get more reps if Olsen is limited by the injury. -- Patriots rookie RB Michel out vs. Texans First-round pick Sony Michel will not play against the Houston Texans. Michel was limited this week in practice by a nagging knee injury. Without Michel, Rex Burkhead is likely to play additional reps. For the Texans, wide receiver Will Fuller is not playing in Week 1 because of a strained hamstring. --Field Level Media<doc-sep>The Indianapolis Colt released their first injury report of the regular season with the designations ahead of the Sunday opener against the visiting Cincinnati Bengals. While the Colts will be down an offensive tackle, they did see the return of left tackle Anthony Castonzo and running back Marlon Mack, both of which are working their way back from respective hamstring injuries. Here’s a look at the injury designations ahead of Sunday’s matchup: Player Position Injury Status Denzelle Good OT Knee/Wrist Out Marlon Mack RB Hamstring Questionable Anthony Castonzo OT Hamstring Questionable Nate Hairston CB Hamstring — Darius Leonard LB Ankle/Chest — Anthony Walker LB Groin — Zach Pascal WR Calf — The Colts injury report isn’t too extensive given how many players were limited this week in practice. Good is the only player ruled out entering the weekend after failing to log in a practice this week. Though Mack and Castonzo are questionable, it remains to be seen if they will be able to suit up against the Bengals on Sunday, and they will likely be game-time decisions. Regardless, it was an encouraging sight to see both of them return to practice in a limited fashion for the majority of this week’s practices.<doc-sep>
Two days before their first game of the season, we still don’t know if the Colts will have their starting left tackle or starting running back. Both Anthony Castonzo and Marlon Mack are questionable for #CINvsIND: https://t.co/tWyn21SlYs pic.twitter.com/tSibFhA6EJ — Indianapolis Colts (@Colts) September 7, 2018 Anthony Castonzo and Marlon Mack are both listed as questionable for Sunday’s game, with only Denzelle Good officially listed as out. Both Mack and Castonzo have practiced in a limited capacity since Thursday, and Castonzo practiced on Wednesday as well. Frank Reich is playing very coy with his injury announcements and he hasn’t been shy about the reason. He knows that there is a competitive advantage in knowing who will play, and he isn’t willing to let that advantage go just yet. According to Reich, there is a plan for the offensive line, regardless of whether or not Castonzo can play. It would be foolish to think that the absence of Anthony Castonzo wouldn’t be a major blow to the Colts in a game against a team with a pretty nasty defensive line. This roster decision could have a major impact on the game Sunday. On the flip side, bringing Castonzo back too early and risking an aggravation of his hamstring injury would be a much worse situation. Marlon Mack’s return would be a less impactful one, although certainly not to be taken for granted. Because the Colts will run multiple backs regularly, it is unlikely that his absence would have the same sting as losing their stalwart left tackle. Darius Leonard, who had suffered with an injury to his ankle and chest was back in action and a full participant in today’s practice. That is encouraging, because Tyler Eifert is a dangerous weapon, and the Colts will need their rookie linebacker flying all over the field making plays if they want to get a win. As much as we are anxious for answers, we may have to wait right down to the wire to determine who is starting this game.