By Hunter Hodies The NFL offseason has already had a few massive wide receivers trades this offseason and that has some wondering if D.K. Metcalf could be next. Metcalf didn’t show up to OTAs and was also not present for mandatory minicamp in Seattle. He’s frustrated that contract talks haven’t resulted in a new deal. He’s also rehabbing his recent injury in Los Angeles, per Ian Rapoport. Losing Metcalf would be a big blow to the Seahawks. He’s their top wideout after finishing last season with 967 receiving yards and 12 touchdowns off 75 receptions. That came right after an even more dominant…