The 27-year-old was shut out against the New England Patriots when he was held to zero catches at Gillette Stadium, which was a rare poor match in his All-Pro season.
"It's something that we've worked on this camp, shoring up some of those things and being ready for when teams do that," Graham told ESPN.
"And Drew [Brees] being the quarterback he is, he finds the open guy. He doesn't key on one guy or two guys, he finds the open man."
The Saints face the Atlanta Falcons in their 2014 season opener tomorrow.