Complex sentence: Like the rest of the Phantoms, he was called up to attend Flyers training camp, but unlike the rest, his name has appeared on the current Flyer's roster, so many assume that this year will be his rookie season in the NHL.
Split into simpler sentences: Like the rest of the Phantoms, he was called up to attend Flyers training camp. Many feel that this year will be his rookie season in the NHL.