Philadelphia Eagles wide receiver DeSean Jackson believes that his side's new offensive scheme will catch a lot of teams "off-guard" this season.

New head coach Chip Kelly has brought a new up-tempo scheme to the club following his successful stint at college side Oregon.

Jackson told reporters: "Regardless of where I come out, every play with the tempo and with the speed plays and intensity, we'll always be able to keep them off-guard.

"Whether it's down the field, options, reverses, getting the ball out quick, those are things that we're going to take advantage of, and hopefully once we get them to kind of play up, we can go down the field a little bit."

Philadelphia open their regular season campaign against the Washington Redskins.