Dak Prescott says Cowboys' Trevon Diggs is 'for sure' the best cornerback in the NFL: 'It's easy to see' | CBS Sports Headlines Dak Prescott says Cowboys' Trevon Diggs is 'for sure' the best cornerback in the NFL: 'It's easy to see' Diggs has a league-leading five picks through just … Continue reading Dak Prescott says Cowboys' Trevon Diggs is 'for sure' the best cornerback in the NFL: 'It's easy to see'