He is well remembered by college football fans for being on the receiving end of a goal line hit by University of Alabama linebacker Barry Krauss, in the Sugar Bowl on January 1, 1979, (ranked the Greatest Bowl Game Ever by ESPN.com in 2002[2]) determining the NCAA national football champion.
"[3] Guman was selected by the defending NFC Champions Los Angeles Rams in the 6th round (154th overall) of the 1980 NFL draft, on April 30, 1980.
He was used mostly as a blocking fullback after the Rams drafted Eric Dickerson in 1983, a position he held for the rest of his career with the team.
Guman's son Andrew was an Academic All-American football player at Penn State, under the same coach, Joe Paterno.
He still lends his name and image to local restaurants and non-profit groups in the Lehigh Valley area of Pennsylvania.