 Complete the following phrase:  The AAFC proposed match-ups with NFL teams numerous times during its four-year existence, but no inter-league game ever materialized. That made Clevelands entry into the NFL in the 1950 season the first test of whether its early supremacy could continue into a more established league. The proof came quickly: Clevelands NFL regular-season opener was against the two-time defending champion Philadelphia Eagles on September 16 in Philadelphia. The Browns lit up the Eagles vaunted defense for 487 total yardsincluding 246 passing yards from Graham and his receiversin a 3510 win before a crowd of 71,237. This decisive win quashed any doubts about the Browns prowess. Behind an offense that featured Graham, Groza, Motley, Lavelli and running back Dub Jones, Cleveland finished the 1950 season with a 102 record, tied for first place in the Eastern Conference. After winning a playoff game against the New York Giants, the Browns advanced to the 