Veteran Giants quarterback Jameis Winston and rookie tight end Thomas Fidone II had an animated and extended conversation in the locker room after Thursday’s practice that revealed how player accountability happens in the NFL.

“The standard is the standard,” Winston, 31, told the Daily News on Friday.

“We’re very hard on each other, honestly,” Fidone, 23, said in a separate interview with The News.

Winston and Fidone run offensive plays together daily on the Giants ‘ scout team. Winston is an 11th-year veteran trying to lead behind the scenes who is still eager to play well and produce whenever his next opportunity comes.

Fidone is a seventh-round rookie who — even if he might be on the verge of his NFL debut Sunday in New Orleans — is trying to remind the organization why he ca

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