Andrew Luck (shoulder) still limited in Colts practice

Andrew Luck remains a bystander as the Colts prepare for their Week 4 matchup against the Jaguars.

For the second straight day, Luck made no throws in the portion of practice open to the media, according to The Indianapolis Star. Luck mostly watched as Matt Hasselbeck and Alex Tanney, the next men up if Luck were unable to play against Jacksonville, took reps with the offense.

Colts coach Chuck Pagano said Wednesday that Luck suffered a shoulder injury during Indianapolis' 35-33 win over the Titans on Sunday. Pagano said Luck was day-to-day, and added he had "supreme confidence" Luck would not miss time.

"It didn't feel as good as I would have liked to after the game," Luck acknowledged Wednesday. "We're going to take it day-by-day, and expect to play that's for sure. Obviously going to defer to doctors, trainers and coaches on everything when it comes to that but hopefully a little more tomorrow and ready to go."

The Star reported that Luck did take a "few" snaps early in practice, but handed the ball off each time. Luck has been an iron man since entering the league in 2012. He's never missed a game and had yet to even show up on a team injury report.

That changed Thursday afternoon, when Luck was officially listed on the Colts' injury report.