He played college football for the Arizona Wildcats, twice earning consensus All-American honors.

[3] In January 2013, he pleaded not guilty to misdemeanor assault and disorderly conduct charges stemming from an alleged domestic violence.

[8] On January 13, 2014, Carey announced that he would forgo his senior season and enter the 2014 NFL draft.

[13] In week 13 of 2015, Carey scored his first career rushing touchdown against the San Francisco 49ers on a four-yard run.

[14] On December 27, 2015, Carey recorded his first career receiving touchdown in a 26–21 win against the Tampa Bay Buccaneers.

[18] In 2019, Carey started to make an impact on offense and was Calgary's leading rusher by midway through the season.

[19] On September 23, 2019, the Stampeders announced that Carey would miss the remainder of the season after suffering a broken arm.