Andrew Luck

Andrew Luck (concussion) not seen at Colts' practice Tuesday

Indianapolis Colts quarterback Andrew Luck (concussion) wasn't spotted at the beginning of Tuesday's practice, according to Zak Keefer of The Indianapolis Star.

What It Means:

This is the last practice of the week for the Colts ahead of their Thursday night matchup with the Pittsburgh Steelers, so it doesn't bode well for the quarterback's availability. Keefer said on Monday that it's "highly unlikely" Luck gets cleared in time. Scott Tolzien is expected to start under center.

Tolzien will face a Pittsburgh defense that ranks 23rd in schedule-adjusted Defensive Passing Net Expected Points allowed per play.

Source: Zak Keefer