Andrew Luck ruled out of Sunday's game vs. Cardinals

Indianapolis Colts fans will have to wait at least another week for the return of their star signal-caller.

Colts quarterback Andrew Luck has been ruled out of Sunday's game against the Arizona Cardinals as he continues to recover from a shoulder injury, head coach Chuck Pagano said, per Andrew Walker of Colts.com.

A report surfaced last weekend that Luck could be sidelined until October, which is bad news for Indianapolis for obvious reasons. Colts quarterback Scott Tolzien struggled mightily in the team's opening contest against the Los Angeles Rams, throwing a pair of pick-6s before being pulled in favor of Jacoby Brissett.

It remains to be seen who the Colts will turn to behind center against the Cardinals, as Brissett has only been with the team for a little over a week.