Peyton's plans are private

New York Giants quarterback Eli Manning said he does not know if older brother Peyton plans to retire after the Super Bowl, but he hopes Peyton "can go out on top".

The elder Manning will become the oldest starting quarterback in Super Bowl history at age 39 when he leads the Denver Broncos against the Carolina Panthers in the NFL's championship spectacle on Feb 7 in San Francisco.

And Eli Manning, who has won two Super Bowl titles to one for Peyton, is among those who gets the feeling that Super Bowl 50 might be the moment when his five-time NFL Most Valuable Player sibling hangs up his helmet for good.