Complex sentence: After training camp, Schenn was chosen for the team roster at the start of the 2008--09 season, making his NHL debut on October 9,2008, against the Detroit Red Wings.
Split into simpler sentences: After training camp, Schenn was chosen for the team roster at the start of the 2008--09 season. He made his NHL debut on October 9,2008, against the Detroit Red Wings.