Complex sentence: Simms was invalidated back to England after being wounded on the Italian front, but recovered enough to regain his place in the Luton team and scored 40 goals during the 1916--17 season.
Split into simpler sentences: Simms was invalidated back to England after being wounded on the Italian front. He recovered enough to regain his place in the Luton team and scored 40 goals during the 1916--17 season.