Former Indianapolis Colts franchise quarterback Andrew Luck's retirement just shy of the 2019 NFL season sent shock waves throughout the league.

Luck, a former No. 1 overall pick, was coming off a resurgent 2018 season in which he led the Colts to the AFC divisional round in Frank Reich's first year as head coach.

The Colts were thought to be one of the top contenders in the AFC, with a revamped offensive line and Luck back healthy under center.

Instead, the Pro Bowl quarterback announced he was retiring shy of his age-30 season, citing past health issues and future concerns over the state of his body. Luck also suggested he was simply satisfied with his football career.

Naturally, this prompted all sorts of speculation about a potential comeback. But team personnel seems to feel Luck is really retired for good.

Reich stated Luck has given no indication he wants to return, and Colts owner Jim Irsay said the same earlier this week:

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“You know, I don’t think so. I really don’t,” Irsay said, per Michael Silver of “I think that door’s closed.”

Quarterback has been a position of interest for Indy since Luck retired.

Jacoby Brissett went 7-8 as the short-term replacement in 2019. The Colts signed veteran Philip Rivers to a one-year deal this offseason, and Rivers has led Indy to an 8-4 mark thus far.

Rivers has had a pretty strong year, completing over 68 percent of his attempts for over 3,200 yards and 18 touchdowns. Yet, there is always going to be the looming question of just how good this Colts team would be if an in-his-prime Luck decided to return.

But it seems football fans will never know the answer to that question.