Complex sentence: Northampton Saints had an unbeaten home record that stretched from March 2007 to March 2009, much of this record was set during the Saint's 2007/08 promotion from National Division One.
Split into simpler sentences: Northampton Saints had an unbeaten home record that stretched from March 2007 to March 2009. However much of this record was set during the Saint's 2007/08 promotion from National Division One.