Complex sentence: Unlike in previous years, Nadal next chose to skip the Barcelona tournament (despite being that event's five-time defending champion), and his next tournament was the 2010 Internazionali BNL d'Italia.
Split into simpler sentences: Unlike in previous years, Nadal chose to skip the Barcelona tournament despite the fact that he was the five-time defending champion. His next tournament was the 2010 Internazionali BNL d'Italia.