John Harbaugh tells The Post about mantra fueling Giants at training camp — and why he’s already ‘proud’

WHITE SULPHUR SPRINGS, W.Va. — Once upon a time, it seemed as if the opposing team would swoon at the mere sight of Lawrence Taylor & Co. or Michael Strahan & Co.

Those Giants earned the right to be champions, to be called champions.

These Giants are four days into John Harbaugh’s EARN THE RIGHT training camp.

“We’re here with one mission, to become — to earn the right — to be called the world champions in New York. And that’s what we plan to do,’ Harbaugh said at his introductory press conference.