"Two weeks of rest and got treatment ... I've been putting the time in, and I feel good," Cook said Monday, via the team's official website.
The Vikes sat Cook the final two games of the regular season while the star back nursed a shoulder injury. Given his bruising style between the tackles, Cook noted the rest could be good for his outlook Sunday.
"It's a long season. You go through a lot, your body takes a lot," he added. "I got some rest, and I'm ready to go."
Cook is the engine that guides the Vikings' offense, a bedeviling runner that can as easily break a defender's ankles as run him over, and is a dual-threat force in the screen-game. Heading into New Orleans, the Vikings need a heavy dose of Cook to beat a 13-3 Saints team that has revenge on its mind.
Cook was out with an injury as Minnesota pulled off the Minneapolis Miracle in 2017.
"It was a tough scenario, tough situation. A rookie in the league, I wanted to play," Cook said. "It was tough watching. [But] now I'm here, and now it's time to win some games."