Kansas City Chiefs rookie running back Carson Steele is set for an expanded role on Sunday in the Week 18 regular-season finale against the division-rival Denver Broncos. The Chiefs will be resting many of their regulars this weekend after already locking up the No. 1 seed in the AFC for the playoffs. Isiah Pacheco (rib) has already been ruled out, while Kareem Hunt is doubtful to play. It means that Steele, an undrafted free agent, could make the start in the final regular-season game. ...