With Amari Cooper gone from Oakland, the Raiders' wide receiving corps suddenly has some open space.

Jordy Nelson stands to benefit the most, but he's probably not available in your league. Martavis Bryant may carry some name value, but it's Seth Roberts who you should be looking at most closely.

Cooper made an early exit in Week 6 when he suffered an injury, limiting him to only 20% of the team's offensive snaps. Roberts stepped up and played 73%, a jump from the 54% he had played in Week 5.

He made the most of that opportunity, leading Raiders' wideouts with six targets. That comes one week after he saw a season-high seven targets (again, while barely playing more than half the available snaps), which was a team-high for Oakland in Week 5.

This week's matchup with the Indianapolis Colts isn't anything special, but in Roberts you very well may be grabbing the Raiders' WR1 for the remainder of the season.