Andrew Luck injury update: Colts QB (lower leg) won't practice this week

Andrew Luck sighting: Colts quarterback warms up ahead of Week 2 preseason game

Andrew Luck will take the week off to allow his body more time to heal.

Colts coach Frank Reich on Tuesday said his quarterback will continue to be absent from practice as the team’s Sept. 8 regular-season opener against the Chargers approaches, noting the issue remains a matter of “full speed movement vs. pain threshold.”

The Colts have been cautious with Luck, who suffered a strained calf this spring and is also dealing with a sprained ankle. Reich said last week he wants to decide by the third preseason game whether Luck or backup Jacoby Brissett will be the opening-game starter.

“You have to be able to make a call and move from there,” Reich told reporters, “whether we’re full speed with Andrew after that third preseason game (Aug. 24) or if at that point we are going with Jacoby.”

Luck was spotted on the field prior to Saturday’s preseason win over the Browns, but wasn’t in uniform.

Given he has been limited to just three practices since April and won’t be on the field this week, it’s becoming more unlikely that Luck will start under center next month.