Fullback Marcel Reece signed his exclusive-rights free-agent tender and participated in the team's OTA practice Monday.
He had stayed away from the team's offseason programs in hopes of landing a better deal, but he had little leverage - especially after veteran Owen Schmitt was signed last month. Reece has versatility in that he can play in the slot and as a downfield receiver to create mismatches.
The Raiders have changed their offensive system, however, and coach Dennis Allen warned last month that Reece was falling behind.
"He needs to get in here pretty soon," Allen said in May. "He needs to get caught up to what we're doing."