Complex sentence: This second chance was a no disqualification match against then World Heavyweight Champion Mark Henry, which Ryder won with interference from Cena, thus earning him a United States Championship match at, which Ryder won over Dolph Ziggler his first ever singles title.
Split into simpler sentences: This second chance was a No Disqualification match with World Heavyweight Champion Mark Henry, which Ryder won with interference from Cena. This won Ryder a United States Championship match at, which he won over Dolph Ziggler his first ever singles title.