INDIANAPOLIS – If you’re like a lot of Colts fans, this offseason’s injury news likely has caused some level of anxiety.

On the other hand, the calendar says it’s still May and we’re a good four months from opening day of the 2017 regular season.

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But there are enough key players currently dealing with injuries of varying magnitudes that the injury issue can’t be wished away. When the Pro Bowl quarterback and the team’s defensive enforcer are among those rehabbing from extensive offseason surgeries, we must pay heed.

So, let’s run through some of the Colts’ key injuries and outline just how concerned you ought to be:

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QB Andrew Luck

Luck underwent surgery on his throwing shoulder for a torn labrum that had plagued him since early in the 2015 season. After putting off surgery last offseason in favor of rehab, Luck decided to go under the knife in January to fully correct the issue.

Luck was always expected to miss the offseason as a result. So far, there have been no surprises in the timeline. But where this gets interesting is the fact that the Colts have gone out of their way to avoid establishing a target date or timeline for Luck’s return. There have been no assurances that Luck will return by the start of training camp, which obviously creates some nervousness.

There will continue to be major questions until we publicly see Luck throwing the football with velocity again. Still, the Colts have been absolutely adamant that Luck will fully recover and play this season. On this, they have never wavered.

“We are not going to be rushing him,” owner Jim Irsay said. “We are going to make sure, obviously, that the shoulder has to be ready and the doctors are going to give full approval before he starts putting real reps on it. We really feel that he’s going to be completely healed for the season and he’s going to have a great season.”

Concern level: Somewhat high.

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S Clayton Geathers

The mystery surrounding Geathers’ condition finally was clarified when the Colts this past week revealed the hard-hitting safety underwent surgery to address a bulging disc in his neck.

If the very thought of a neck surgery makes you nervous, it should. Geathers clearly had the same reaction, putting off the procedure until March after waiting, in vain, for the condition to improve with rest.

Besides the obvious issue here — neck injuries are terrifying and require an abundance of caution — a big indicator of Geathers’ prospects for 2017 comes from the unwillingness by any party to project whether he’ll be ready to play.

“We’re hopeful, but I can’t,” coach Chuck Pagano said. “There’s no timeline on it.”

Concern level: Very high.

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S Malik Hooker

The Colts’ first-round pick underwent surgery to correct a sports hernia and a torn labrum in his hip earlier this year. He also will be a spectator for the duration of offseason workouts, but there is universal agreement from the player, coaching staff and front office that he will return for the start of training camp in late July.

Nothing to this point has suggested that won’t happen, though these matters are always projections, not promises.

Concern level: Low.

DE Kendall Langford

If you’re surprised to see Langford on this list, join the club. It wasn’t until Tuesday, when the Colts opened practice to reporters for the first time, that his absence was noted. Langford, Pagano explained, is still rehabbing from a knee injury that shelved him for nine games last season.

Langford underwent surgery for a chondral defect in August, a painful injury where a defect forms in the knee cartilage. Langford rehabbed quickly and was back for the season opener, but we never saw him play anywhere near his impressive 2015 level.

He later admitted he might have returned too quickly. That, Langford explained, caused a secondary issue that prompted the Colts to place him on injured reserve. As a point of reference, guard Jack Mewhort sustained the same injury in December and is back practicing with the team. No two injuries are exactly the same, so it’s not an apples-to-apple comparison. But seeing how Langford is older (31), this bears close watching.

Langford, for the record, guaranteed he’d be ready for the start of training camp. Time will tell.

Concern level: Medium.

CB Quincy Wilson

We’re reluctantly adding Wilson to this list because there are no details on his injury. But his status as the team’s second-round pick and possible starting cornerback makes his issue worth noting.

Wilson, according to Pagano, practiced Monday, but returned Tuesday morning with soreness in his lower right leg. Team trainers placed him in a walking boot and he was sidelined on Tuesday, with Pagano saying Wilson was slated to undergo an MRI exam later in the day. No further information was known at the time, Pagano said.

The good news is that Wilson was clearly mobile. The walking boot can sometimes sound daunting, but they are often precautionary. Until we know more, let’s tread lightly here.

Concern level: Low.

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