Per Zak Keefer of the Indianapolis Star, Colts head coach Frank Reich said everything is going to plan with Luck's shoulder rehab and that the star quarterback is doing exceptionally well.
Last month, during Colts veteran minicamp, Luck didn't throw. He did take part in a portion of practice with the team, though he was limited to center-quarterback exchanges and handing the ball off.
"We'll ease him along," general manager Chris Ballard said in March on The Grady and Big Joe Show (via the team's website). "I mean, he's in a great place right now, but we'll ease him along."
Luck hasn't played since the final game of the 2016 regular season. In January 2017, he underwent surgery on his right shoulder for an injury that had lingered since the 2015 season.
Indianapolis shut down Luck in October and placed him on season-ending injured reserve the following month.
Luck has led the Colts to a 43-27 record in 70 regular-season starts since being drafted No. 1 overall in 2012. He threw for 4,240 yards and 31 touchdowns with 13 interceptions during the 2016 season.