Perron, a 25-year old left-winger, had 10 goals and 15 assists for St. Louis last season. In his NHL career, Perron has 84 goals and 114 assists in 340 games
Perron has three more years left on his contract at a cap hit of just over US$3.8 million.
Paajarvi has 26 goals and 32 assists in 163 games with the Oilers. he was drafted 10th overall by Edmonton in 2009.
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