Complex sentence: Simpson gained more than 1,000 rushing yards for each of his next three seasons, but he didn't lead the league in rushing in 1974, but did cross the 1,000-yard barrier despite a sore knee.
Split into simpler sentences: Simpson gained more than 1,000 rushing yards for each of his next three seasons. He didn't lead the league in rushing in 1974, but did cross the 1,000-yard barrier despite a sore knee.