Complex sentence: Nady underwent an emergency appendectomy early in the morning on May 30,2006; he was placed on the 15-day disabled list, and returned to the lineup on June 18.
Split into simpler sentences: Nady underwent an emergency appendectomy early in the morning on May 30,2006. As a result, he was placed on the 15-day disabled list, and returned to the lineup on June 18.