Complex sentence: After the summer, he went off to Greece to play with Apollon Patras, and this past season for the Italian club Montepaschi Siena, which won the 2007 Italian championship game.
Split into simpler sentences: After the summer, he went to Greece to play with Apollon Patras. He then moved to the Italian club Montepaschi Siena, which won the 2007 Italian championship game.