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Seth Roberts wants to fill possible void left by Michael Crabtree, Amari Cooper

Seth Roberts shrugged off this fumble against the Patriots and is ready to give the Raiders more production. Buda Mendes/Getty Images

ALAMEDA, Calif. -- Seth Roberts had a tough game in Mexico City, no doubt about it.

He had a strange false start. He had a costly dropped pass. And his fumble inside the New England Patriots' 5-yard line just before halftime as he was trying to extend a play instead of just going down was a huge momentum killer.

That was two weeks ago.

"I wasn't even thinking about Mexico City," Roberts said Wednesday. "It happened, it's over with.

"I really haven't been thinking about it."

And for good reason. Roberts has different, and possibly bigger, things on his mind now. Like having to step up from being the No. 3 receiver Sunday for Oakland against the New York Giants, with Michael Crabtree serving a one-game suspension and Amari Cooper nursing a concussion and sprained left ankle.

Roberts will have to know all three receiver routes, much like he did at Denver on Oct. 1, when Crabtree was out with a chest injury.

And that goes for Cordarrelle Patterson and Johnny Holton, too, not to mention practice squad call-up Isaac Whitney.

Raiders receivers Cordarrelle Patterson, Johnny Holton and Seth Roberts run patterns for Connor Cook, Derek Carr and EJ Manuel in practice on Wednesday. The Raiders will be without the suspended Michael Crabtree and possibly the injured Amari Cooper, who is dealing with a concussion and a sprained left ankle and was not on the practice field.

Paul Gutierrez, ESPN Staff Writer ago

"He's very quiet, Seth is very quiet, but you can always see him making jokes," Raiders quarterback Derek Carr said. "He has his sly way of communicating and things like that. He's very, very, how do you say, he works really hard. Good or bad. You'll always see him at practice. Especially at training camp and things like that. If we’re doing a drill or the defense is doing a drill, whatever, he's always in the back catching balls from somebody.

"Whenever he has a bad game, good game, it really doesn't matter. That's our culture that we've built here. Good game, bad game, all those things are going to happen. You just worry about the process. You make sure you recover, you prepare, and you compete your tail off. The results will take care of themselves. He has definitely taken that to heart."

Roberts' 24 catches ranks fifth on the team -- behind tight end Jared Cook, Crabtree, Cooper and running back DeAndre Washington -- and his 262 receiving yards are fourth.

The Raiders are 10-0 in Roberts' career whenever he catches a touchdown pass.

"I don't think about it like that, man," Roberts said of potentially getting more balls thrown his way this weekend. "Every time I step on the field, obviously, I want to do my best with the opportunity. But it's just another game, you know, for me."

Then what about facing the Giants' deficient pass defense?

Roberts said he was well aware of the stat showing New York surrendering 258.2 passing yards per game, and the Raiders' No. 14-ranked passing attack averaged 237.5 yards through the air.

"I thought about that and, yeah, you know, it depends on how that guy comes out and plays that Sunday, you know?" Roberts said. "We put our pants on just like they do and it's whoever's going to be on top of their game that day."