Fantasy Upside
The Vikings took a while to let Stefon Diggs loose as a rookie last season, but he came out with a bang -- catching 25 passes for 419 yards in his first four games. He played a big role the rest of the season for Minnesota, finishing with 52 receptions (fourth best among rookies) for 720 yards (second best among rookies).
He's now taken another step forward heading into his sophomore campaign, and will open as the team's No. 1 wideout. He's a great possession receiver, which will give him a boost in PPR formats.
Fantasy Downside
After Diggs' hot start, his numbers cooled off in a big way. A lot of that falls on Minnesota's offense, which leans heavily on the run. The Vikings had the fewest pass attempts per game, which leaves very little room for receptions.
Making things a little more complicated is the addition of rookie receiver Laquon Treadwell, who will fight for targets in the offense as well.
Bottom Line
Diggs is a great talent, but the offense he's in will impact his ability to produce. He's a low-end WR3 at best, but will most likely end up being a WR4 option.