Complex sentence: He had a serious knee injury in October 2007, and did not play a single match the entire season for the Italian side; on 17 March of the following year, the club communicated the decision to rescind his contract.
Split into simpler sentences: He had a serious knee injury in October 2007, and did not play a single match the entire season for the Italian side. On 17 March 2008, the club communicated the decision to rescind his contract.