Mangold, who is close friends with Sanchez, said he believes the quarterback will eventually win the competition with rookie Geno Smith for the starting job.
"I haven't walked around with a pen and paper and taken a poll, but from the feeling I get, the locker room wants to win. Whoever gives us the best chance to do that, we want out there -- and at this point, Mark gives us that best chance," Mangold told the newspaper.
Mangold isn't the first Jets veteran to endorse Sanchez, as receiver Santonio Holmes repeatedly has said he favors the quarterback to start for the team.
Mangold said he believes that Sanchez is a "fantastic quarterback" and has shown "some good flashes in the spring" as he learns new offensive coordinator Marty Mornhinweg's system.
In a separate interview Wednesday with ESPN Radio's "SVP & Russillo," Mangold said that Smith is "coming along."
"I think he's handled it well, he's had his growing pains, but you keep working through those and try to learn from the mistakes and keep getting better," he said.
Mangold also told ESPN Radio that coach Rex Ryan, who likely will be on the hot seat if the Jets struggle this season, is going about the offseason "the way he knows best, and that's to get the guys ready to play" and "make sure we're in a position to succeed."
"Rex is a fighter and he's going to keep fighting, and we as players have to make sure we don't let him down in that endeavor," Mangold said.
The Jets have a different roster dynamic after an offseason that saw the departure of several veterans, including on the offensive line. Mangold said the Jets' youth isn't necessarily a detriment, however.
"We're a young team, but I think we're a hungry team," he said. "That can be a dangerous combination where hopefully we can use that to our advantage and do some good things this year."