And now that statement is going to come true as the 5-foot-11, 175 pound speedster will sign his national letter of intent tomorrow at Mays High.
"I'm definitely ready to make it official," Marshall told TDD Tuesday night. "I know some of the other guys, like Corey [Thompson], Alfred [Williams], and Chris [Davis] are all looking forward to it too."
Sporting a sub 4.5 forty time, Marshall is one of the fastest players due into Durham in many years. The speed has also translated into a terrific track career where he excels in the 100 and 200.
"I ran pretty well at Clemson this past weekend. I came in first in my heat in the 55 meter, and second overall in the 200 meter. I think I ran a 22.25 in the 200, which is a top 25 time in the nation."
That speed could likely result in Marshall earning immediate playing time when he arrives on campus, though he is aware of what he needs to work on to be a true impact freshman.
"They've told me I can come in and immediately contribute on returns and at cornerback as a true freshman. I don't think I need to work on speed, but I do need to work on supporting the run on sweeps and pitches. I think I'm pretty good when it comes to coverage, but I know I can get better."
Off the field Marshall says he's looking forward to preparing himself for a career in dentistry while at Duke.
During his senior season Marshall says he logged over 800 return yards, along with 47 tackles, and the seven interceptions. He also spent time on the offensive side of the ball, catching nine passes for 99 yards and a pair of scores.