Complex sentence: Reynolds hoped to be named to All-American teams and to have a career in professional football; however, in the first game of the season, Reynolds was injured and a car accident later that year worsened the injury.
Split into simpler sentences: Reynolds hoped to be named to All-American teams and to have a career in professional football. However, Reynolds was injured in the first game of the season; a car accident later that year worsened the injury.