On Tuesday the Vikings announced that the team has signed LB Alex Singleton to the practice squad after brief stints this season on the practice squads of the New England Patriots and Seattle Seahawks. Singleton entered the NFL as an undrafted rookie in 2015 with the Seahawks and spent a portion of training camp with the club. The Thousand Oaks, Calif., native was a three-year starter at Montana State. In 2014, he earned All-Big Sky First Team honors, while also collecting a team-leading 136 tackles, 15 TFLs, 2.0 sacks, 1 FF, 1 INT and 2 blocked kicks on special teams.