It has been a long and arduous road to recovery for Indianapolis Colts star quarterback Andrew Luck from his surgically repaired right shoulder.

He has experienced a few setbacks along the way that made it hard for him to get a set date for his return to the field. According to Adam Schefter of ESPN, doctors are still concerned about the state of his shoulder that still appears to be bothering him.

This is discouraging news for the Colts given that there were reports last week that Luck was getting close to him start throwing again. The 28-year-old had headed out to Los Angeles to work with well-regarded throwing and strength gurus Tom House and Adam Dedeaux. The two have worked with several prominent quarterbacks in the league such as Tom Brady, Drew Brees, Andy Dalton, and Jared Goff.

At that time, it was believed that Luck was on track to not requiring additional surgery to repair his right shoulder. This now puts another wrench into the long-term plans for Indianapolis as the team is still set on building around him as the franchise quarterback.

Luck had undergone shoulder surgery to repair a torn labrum in his throwing shoulder in January 2016 to repair an issue that he had been dealing for months. However, he has since experienced continual discomfort and pain that forced him to be shut down for the entire 2017 season.

During the month of December, there had been chatter that he could require biceps surgery that would require three-to-six months of recovery. Since then, there had been much coming out of Luck's camp about him suffering any setback in his rehab, which gave off the notion that he could still be on track to return next season and possibly be available in training camp.

There is a possibility that this could have impacted New England Patriots offensive coordinator Josh McDaniels to turn down the vacant head coach position. Ultimately, this is going to remain an ongoing issue for Luck that's going to remain monitored closely over the offseason.