Last year, Mario Manningham was one of the stars of Super Bowl XLVI, as his great sidelines catch helped the Giants defeat the Patriots (although it wasn’t even his most meaningful catch in that game). As a member of the 49ers this season, Manningham has been placed on injured reserve, but that doesn’t make him ineligible to earn a second straight Super Bowl ring. Brandon Jacobs, who was waived by the 49ers in December, is in the same boat.

How rare is that? Believe it or not, only four players in NFL history have ever won back-to-back Super Bowls with different teams. Guard Russ Hochstein was drafted by Tampa Bay in 2001 and played in one game in 2002; he was waived in October and signed by the Patriots a week later. He stayed in New England through 2008, so Hochstein picked up a Super Bowl ring for his cup of coffee with the Bucs and then earned two more the next two seasons in New England. Hochstein was also a freshman with Nebraska in 1997, when the Cornhuskers were named national champions by USA Today and ESPN.

Defensive back Derrick Martin was drafted by Baltimore in 2006 and has already spent time with four distinguished franchises. He made the AFC Championship Game with the Ravens in 2008, won the Super Bowl with the Packers in 2010, won another super Bowl with the Giants in 2011, and nearly made it back there this year with New England.

Those are the two obscure names. The other two? Well, let’s see if you can guess.