Broncos starters Von Miller and Montee Ball are expected to make their 2014 preseason debuts Saturday. Miller, the Broncos' strongside linebacker who has 35 sacks through his first three NFL seasons, has been sidelined since tearing the ACL in his right knee early in a game Dec. 22 at Houston. His return will be against those same Houston Texans, the Broncos' opponent in the preseason game Saturday night at Sports Authority Field at Mile High. The Broncos and Texans held three joint practices this week at Dove Valley. "I've had a lot of practice at full speed," Miller said. "And with all the practicing here with the Texans, I think it will help make the game seem a little easier. I'm excited." Ball, the Broncos' top tailback, has been out since undergoing an appendectomy Aug. 4. He did little physically for two weeks, then was medically cleared for full practice participation Monday.