Career
In June 2011, the Saint Louis Blues made Rattie their first draft pick and the 32nd overall in the 2011 National Hockey League Entry Draft. He was ranked 17th among draft eligible prospects by Central Scouting. Blues" scouting director Bill Armstrong stating about him "He"s someone that we liked because of his high skill level
Obviously, he"s got some work to do as far as his strength, but he has been able to put up points his whole life at every level" Rattie was the first draft pick Armstrong made as the Blues" scouting director
Rattie was raised in Airdrie, Alberta. The Winterhawks made Rattie the 2nd overall selection in the 2008 WHL Bantam Draft, behind only Ryan Nugent-Hopkins, who was drafted first overall in the 2011 National Hockey League Entry Draft.
During the Winterhawks 2010-2011 season, Rattie had 28 goals and 51 assists in 67 games. He was a playoff scoring leader with 22 points (9 goals, 13 assists) and "led Portland with a plus-11 rating in 21 playoff games" as they reached the WHL finals."
In 2011–2012, Rattie was named Canadian Hockey League player of the week for the week of November 21 to November 27.
He was also named WHL player of the month for November, for scoring 16 goals and 28 points in 11 games.
He made his National Hockey League debut with the Saint Louis Blues on April 11, 2014, against the Dallas Stars. He scored his first National Hockey League goal on January 12, 2016 against the New Jersey Devils.
