The Minnesota Vikings finished last season with a 5-10-1 record. The Vikings went 3-2-1 in their last six games,
The team fired head coach Leslie Frazier. The team hired Mike Zimmer as his replacement in January.
Last season, the Vikings failed to win a road game (0-7-1) for the first time since 2001.
The team ranked No. 13 in offense, and averaged 344.3 yards per game.
Cassel started six games for the Vikings last year and played in nine, throwing for 1,807 yards, 11 touchdowns and nine interceptions.
Despite missing two games last season, running back Adrian Peterson was fifth in the NFL in rushing with 1,266 yards.