Indianapolis Colts quarterback Andrew Luck (12) is tripped up by Denver Broncos defensive end DeMarcus Ware (94) during the first half of an NFL divisional playoff football game, Sunday, Jan. 11, 2015, in Denver. (AP Photo/Jack Dempsey)

Photos: Colts vs Broncos

Sunday’s second NFL playoff game is being played in Denver as the Broncos entertain the Colts.

Montee Ball, Jerrell Freeman

Altitude could play role in Colts game

The Broncos are accustomed to playing football in the thin air, and Colts coach Chuck Pagano, who grew up in Colorado and played football at…