Complex sentence: Mahfouz became the starting quarterback for the Jacksonville Bulls of the USFL in 1984 and was invited to camp with the New Orleans Saints in 1985, but they could not reach contractual agreement.
Split into simpler sentences: Mahfouz became the starting quarterback for the Jacksonville Bulls of the USFL in 1984. He was invited to camp by the New Orleans Saints in 1985, but they could not reach contractual agreement.