Complex sentence: In 1955, he hit 47 homers while striking out only 40 times; no player since him has hit 40 homers and struck out 40 or fewer times in the same season (Barry Bonds missed matching this feat by one strikeout in 2004).
Split into simpler sentences: In 1955, he hit 47 homers while striking out only 40 times. No player since him has hit 40 homers and struck out 40 or fewer times in the same season (Barry Bonds missed duplicating this feat by one strikeout in 2004).