The Lions striker gave the hosts the lead after only four minutes, and the Millers had a dreadful afternoon when Cameron Humphreys scored an own goal and Bradshaw added a late second.
After Bradshaw's early goal, the home team dominated the first half, but on the verge of halftime, Rotherham striker Conor Washington mysteriously missed an opportunity to equalize.
As a result of Humphreys' own goal, which Bradshaw assisted in scoring, and the Lions striker's late second goal, the Millers' arduous run to just one victory in 12 games came to an end in the second half against Matt Taylor's struggling visit ors.
After Bradshaw's early goal, the home team dominated the first half, but on the verge of halftime, Rotherham striker Conor Washington mysteriously missed an opportunity to equalize.
As a result of Humphreys' own goal, which Bradshaw assisted in scoring, and the Lions striker's late second goal, the Millers' arduous run to just one victory in 12 games came to an end in the second half against Matt Taylor's struggling visit ors.