Complex sentence: In the 2007 season, Vázquez exceeding the two hundred strikeouts mark marked the third time he had done this in his career with the other two occasions being in and 2003.
Split into simpler sentences: In the 2007 season, Vázquez exceeded the two hundred strikeouts mark. This marked the third time he had done this in his career with the other two occasions being in and 2003.