DETROIT -- As the last of his four targets slipped through his fingers, all Amari Cooper could do was pound his fists on the Ford Field turf.
The Oakland Raiders receiver finished the most frustrating day of his rookie season with just one catch for four yards in an 18-13 loss to the Detroit Lions. Part of the problem was drops. Cooper couldn't hang on to a pair of slants. His other issue was Lions cornerback Darius Slay, who has been locking down everyone who lines up across from him for more than a month.
Slay gave up just one reception in the contest, and it wasn't to Cooper. Michael Crabtree, another former first-round draft pick, got the best of Slay on a hitch route for an 8-yard gain in the third quarter.