Los Angeles Rams WR Cooper Kupp (knee) led the NFC West in 2018 with an average of 2.42 yards per route run out of the slot.
Footballguys View: More advanced data here that backs up what everyone already knows…Kupp is really good out of the slot. His November ACL surgery uncovered no additional damage and he should be ready for the season opener. He’s a low-end WR2 with upside for Fantasy GMs in 2019. Kupp is currently going off the board at WR20 (4.12) in 12-team PPR leagues.