Carignan made his major league debut in 2011,[5] and appeared in six games for Oakland that year.

The game then ended in the bottom of the twelfth inning when Adam Dolliver was hit, forcing in the winning run.

[6] On June 19, 2012, Carignan underwent Tommy John surgery, ending his 2012 season, and causing him to miss all of 2013 as well.

Carignan signed a minor league deal with the San Francisco Giants in December 2013.

[citation needed] Carignan's great-grandfather Gus Dugas played in MLB in the early 1930s as an outfielder for the Pittsburgh Pirates, Philadelphia Phillies, and Washington Senators.