Jensen believes such a monumental victory was a massive confidence boost for the team and the inspiration they needed to push on.
Having made two crucial saves in the crunch tie at Stamford Bridge in November of last year, Jensen helped Burnley to a scintillating victory over the Blues who were then a league higher than their underdog opponents.
Going from strength-to-strength, Jensen believes that to be the catalyst to Burnley's achievements last season.
"When we started the season, we thought about it and our goal was minimum to get in the play-offs," he told the Lancashire Telegraph.
"We thought we had a good chance but we didn't have the best of starts.
"Of course the Carling Cup and the FA Cup gave us a little bit of a confidence boost.
"I think with the lads we've got here we had a good chance and it proved to be right.
"For my CV down the line, I can tell the grandkids what I've achieved with Burnley."