Smooshed inside this swaggy snap is a jacked dude expected to run it back at tonight's Super Bowl LIX ... You've already been blessed with a big ole' clue (the mascot on his warmup tee), but can you guess who this famous Philly footballer is?

He set some school records during his college days as a Penn State Lion ... and was showin' off his giant skills prior to playing for the Eagles ... You gotta watch him closely, because this guy runs fast and some say he has moves like NFL legend, Barry Sanders.

Can you guess who he is?