Sustersic signed to play for the
Cleveland Browns of the
All-America Football Conference (AAFC) in 1949. Sustersic scored two touchdowns in a pre-season game against the
Chicago Hornets, but saw little action during the season. Led by an offense that featured Motley,
quarterback Otto Graham and
ends
Dante Lavelli and
Mac Speedie, team won the AAFC championship that year. Sustersic finished the season with 114
rushing yards on 23 carries and a
touchdown. ==Later life and death==