Complex sentence: Rick signed a free agent contract with the Cleveland Browns under Bill Belichick as head coach after graduation from Missouri and stayed with them through two years, although he missed the second year after a training camp injury required surgery.
Split into simpler sentences: Rick signed a free agent contract with the Cleveland Browns under Bill Belichick as head coach after graduation from Missouri. He stayed with them through two years, although he missed the second year after a training camp injury required surgery.