Rattie has an enviable opportunity in front of him as one of McDavid's wings. He played with McDavid when the Oilers were playing out the string late last season, and some chemistry was present when he had nine points (five goals, four assists) in 14 games. Rattie, 25, is on his third NHL team, having signed with the Oilers as a free agent July 1, 2017. The St. Louis Blues chose him in the second round (No. 32) in the 2011 NHL Draft. He played 30 games for the Blues and five for the Carolina Hurricanes, who claimed him off waivers Jan. 4, 2017. Rattie was a prolific scorer in juniors. He had 231 points (105 goals and 126 assists) in 131 games for Portland in his final two seasons (2011-2013) in the Western Hockey League.