With a great young quarterback in Teddy Bridgewater, the NFL’s best running back in Adrian Peterson and a solid stable of pass-catchers in Mike Wallace, Charles Johnson, Kyle Rudolph, Cordarrelle Patterson and Jarius Wright, the Minnesota Vikings’ offense is poised for a breakout season.

That breakout, however, could be short-circuited if the offensive line doesn’t improve from last year.

One of the most disappointing players on the Vikes’ front last season was former first-round pick Matt Kalil — whose play at one point led him to a confrontation with a fan.

Kalil admitted in December that a knee proceedure last offseason put him behind and cause some of the struggles. The left tackle is now dealing with more rehab in 2015.

via Kevin Patra of NFL.com