Complex sentence: With his contract expiring in November 2005, Olsen failed to qualify Denmark for the 2006 FIFA World Cup, but he once again prolonged his arrangement with DBU, despite better offers from European clubs.
Split into simpler sentences: With his contract expiring in November 2005, Olsen failed to qualify Denmark for the 2006 FIFA World Cup. He once again prolonged his contract with DBU, despite better offers from European clubs.