Complex sentence: Chiarot was selected by the Atlanta Thrashers in the 4th round (120th overall) of the 2009 NHL Entry Draft, and made his professional debut in the American Hockey League with the Chicago Wolves during the 2009--10 season.
Split into simpler sentences: Chiarot was selected by the Atlanta Thrashers in the 4th round (120th overall) of the 2009 NHL Entry Draft. He made his professional debut in the American Hockey League with the Chicago Wolves during the 2009--10 season.