SAN FRANCISCO — Eli Manning, 35, knows older brother Peyton, 39, could be preparing for his final NFL game. Eli said he hopes to play at least until he is 40.

“I feel great,’’ Eli said. “I’m very healthy, have been very fortunate there. I feel like I have my best football ahead of me and can play at an extremely high level. For the last two or three years I’ve said I have five more years in me. I still feel like I have five more years in me, so I’ll just keep saying that until I don’t have any more.’’