Budding Giants star envisioning a lineup with Saquon Barkley

Saquon BarkleyEvan Engram can imagine the possibilities: Saquon Barkley in the backfield, Odell Beckham Jr. — and Sterling Shepard and Engram — running routes for Eli Manning.

“When you got those guys on the field at the same time, it puts defenses in a bind, kinda pick-your-poison approach to it,” Engram said Wednesday at the Children’s Hospital at Montefiore’s annual Sports Day.

“To have him on the field with Odell and the rest of the talent we have, it could be dangerous if we could put it all together, if that happens,” Engram said.

Engram has seen clips of Barkley.

“He’s a game-changer,” he said. “He can take a read-option 80 yards to the house or he can take an opening kickoff to the…