Complex sentence: Between 2008 and 2009, Pratto made 21 league appearances and scored four goals in total, then returning to Argentina in mid- 2009 for join Boca first-adult squad, now coached by Alfio Basile.
Split into simpler sentences: Between 2008 and 2009, Pratto made 21 league appearances and scored four goals in total. He then returned to Argentina in mid- 2009 to join Boca's first-team squad, now coached by Alfio Basile.