Complex sentence: Tiago left for Portuguese Primeira Liga side Naval, in mid- 2008, he played the first 2 games and first 4 games of 2008--09 and 2009--10 Primeira Liga respectively.
Split into simpler sentences: Tiago left for Portuguese Primeira Liga side Naval, in mid- 2008. He played the first 2 games and first 4 games of 2008--09 and 2009--10 Primeira Liga respectively.