Raiders QB competition: Mendoza closing in on Cousins

Fernando Mendoza earned first-team reps after Cousins-Crosby scuffle, impressing with old-school prep. Cousins returned from scuffle and had his best practice; Mendoza struggled in that session. Cousins still starter but competition heating up. Scuffle has sparked trade speculation for Maxx Crosby. Preseason opener vs Cardinals next week — Mendoza expected to get reps.