Between 1968 (when he was still in high school) and 1972, Siani was selected on four occasions by three Major League organizations (the New York Yankees, the Los Angeles Dodgers, and the Texas Rangers), but he never signed.
With the Raiders having a surplus of wide receivers, the team traded Siani along with a 1979 third-round selection (72nd overall–traded to Houston Oilers) to the Colts for Raymond Chester and a 1979 second-round pick (33rd overall–traded to Tampa Bay Buccaneers for Dave Pear) on July 21, 1978.
He was named the head coach of the Atlantic City CardSharks in 2004, and the Richmond Raiders of the American Indoor Football Association in 2010.
Siani has been employed as a scout for the New Orleans Saints, and was the quarterbacks and wide receivers coach for the Princeton Tigers Varsity Sprint Football program in 2009.
[citation needed] “Cheating is Encouraged: A Hard-Nosed History of the 1970s Raiders” was authored by Mike Siani and Kristine Setting Clark.