Meanwhile, Chelsea find themselves 11 points off the top of the table after an indifferent debut season for coach Andre Villas-Boas.
"In the last few years Stamford Bridge is a place people have really feared," Bardsley told The Chronicle. "However, this season and towards the end of last year, I don't think they have been the team they were.
"They are still a massive team, big and strong, but we go there without any fear."
Sunderland beat the Blues 3-0 in last season's fixture at Stamford Bridge.