Bradford made it four consecutive home wins as Matthew Pennington's first-half header secured a 1-0 victory over Rotherham at Valley Parade, lifting the home side up to fourth.
For Rotherham the afternoon ended in a fourth defeat in a row, leaving the Millers 23rd and firmly entrenched in the relegation battle.
Power's Quick Thinking Unlocks the Game
Rotherham handed goalkeeper Ted Cann his league debut, but he was beaten after just 10 minutes when the visitors were caught out by Max Power's quick free-kick.