Andre Roberts was in Sunday’s game for 63 plays although the wide receiver wasn’t targeted on any of the Cards’ 30 pass attempts, a result that was “definitely frustrating,” he said.But as wide receivers coach John McNulty had pointed out, it might be the 60th play in which Roberts’ number was called.“Of course it is frustrating,” Roberts reiterated. “But you have to keep working hard with it.”Roberts is technically the team’s No. 2 receiver, but his nine receptions are fourth on the team, behind not only No. 1 Larry Fitzgerald (23) but tight end Todd Heap (13) and slot receiver Early Doucet (13). The Giants’ game was more of an outlier however; coming into the game Roberts had been targeted the second-most on the team, after Fitzgerald.Roberts hasn’t made the kind of impact catching the ball he would like, but offensive coordinator Mike Miller said Roberts is “in command of what he needs to do.”“He’s explosive and strong,” Miller said. “We send him into the box to block that eighth guy all the time, so from the standpoint of how we operate with the ‘Z’ receiver, he’s been able to do those things. He’s fast and he can stretch the field. Unfortunately this last game we just couldn’t get the ball to him, but the read dictated it go somewhere else.Roberts returns to Minnesota Sunday, where he scored his first NFL touchdown last season and the place where coach Ken Whisenhunt said Roberts “started to get it” as an NFL player.Roberts still needs build chemistry with quarterback Kevin Kolb too, but that’s in-progress, he said.“It’s definitely not as much as Larry but I would expect that, number one guy, got to his timing first,” Roberts said with a smile. “But it’s coming along.”