Andrew Luck still isn’t practicing and the Indianapolis Colts are running out of time.

Coach Frank Reich announced Tuesday that the quarterback won’t be taking part in practice this week as he continues work his way back a leg injury that has been attributed to his calf, high ankle, and, according to Colts owner Jim Irsay, an extra bone in his left ankle.

“Really no further updates. All we have right now is a combination of full-speed movement and pain threshold,” Reich told reporters.

Luck has yet to be a full participant in Colts’ practices this preseason, taking part in activities just three times. If he’s unable to play Week 1 against Chargers, Jacoby Brissett will take the reins, though Reich had hoped to name his starter well in advance of that opening matchup.

The top pick in the 2012 draft, the 29-year-old Luck has missed 26 games since the 2015 season, and he’s in danger of missing even more time before the season even begins.