Complex sentence: He played the last five reserve games of 2009--10 season as one of the starting forward (re-scheduled round 13 on 1 April and round 23 to 26), whereupon Chievo lost to eventual champions Genoa in the quarter-finals of the playoffs.
Split into simpler sentences: He played the last five reserve games of 2009--10 season as one of the starting forwards. The club lost to eventual champions Genoa in the quarter-finals of the playoffs.