In his three years of high school wrestling, Weiss recorded a 102-11 record.
Zanon departs Penn State after racking up numerous awards in her three years with the program.
Shrewsberry is joining his father, Micah, in South Bend.
The combine will run from May 16 to 18 in Chicago, Illinois.
The Nittany Lions split yesterday's double header against the Hawkeyes.
The Nittany Lions split the doubleheader thanks to two big home runs in game two.