Which receivers can Raiders draft early to help Derek Carr?

D.K. Metcalf ran a 4.33 40, tied for third best among wide receivers. (Photo by Joe Robbins/Getty Images)INDIANAPOLIS — With four of the first 35 picks in the 2019 draft, the receiver-needy Raiders are likely to use at least one of those picks on someone to catch passes from Derek Carr.

On an eventual game-winning drive against the Cardinals last season, Carr’s wide receivers were Seth Roberts, Marcell Ateman and Saeed Blacknall. That trio won’t cut it against anyone but the worst team in football.

Jordy Nelson, 33, is currently the Raiders top wide receiver and has one year left on his contract. He’s a serviceable No. 2 but more like a No. 3 on a contender. The Raiders have to, at the very…