The Maryland wide receiver's hands can fit comfortably into "3X" gloves. Most receivers don't wear anything larger than size "2X."
On Monday, Diggs fidgeted and cracked his knuckles as he sat in the Gossett Football Team House auditorium answering media questions as the Terps opened preseason training camp.
For one afternoon, the 6-foot, 188-pound freshman looked like he didn't know what to do with his hands. That's not expected to be a problem for long.
One of the most intriguing storylines of training camp will be how quickly Maryland can incorporate the speedy Diggs — the program's most highly-touted recruit in years — into its offense and special teams.
Based on what they have gleaned about Diggs so far, Maryland coaches seem to believe he is too talented and valuable to keep the ball out of his hands for long.
"We've got to devise ways to get him the football," Maryland receivers coach Lee Hull said. "Hand him the ball — that's a way to get the ball in his hands. We'll do some stuff like that with him.
"YAC (yards after catch) with him is huge. Let him do some things in space — devise plays where he's one-on-one with somebody. We'll feel good about the results."
Diggs wasn't listed as a kick returner on the preseason depth chart released by the team. But Diggs, who will wear No. 1, said he's been told he'll have an opportunity to prove himself as a kick returner and receiver during camp.
He's listed fourth at one of the wide-receiver spots.
"All the freshmen are at the bottom of the depth chart," Terps coach Randy Edsall said. The coach said he didn't want any "undue pressure" placed on the first-year players.
At the same time, Edsall said Diggs and the other freshmen will have as good a chance as any player to compete for playing time.
It would be hard to imagine Maryland not using Diggs as a kick returner this season, which begins at home against William & Mary on Sept. 1.
"On athletic ability alone, it's a great spot for him," said Ryan Bowman, the receivers coach at Good Counsel, where Diggs starred at multiple positions. "It's a little easier to step on the field as a return man as opposed to learning the playbook immediately."
Diggs' career could follow the arc of former Maryland receiver Torrey Smith, now with the Ravens. Smith made an immediate impact in his first season, particularly as a kick returner. Another receiver from the region, West Virginia's Tavon Austin (Dunbar), played sparingly as a receiver in his freshman season, but was immediately a kickoff return threat (No. 4 in the Big East in his first season).
Diggs' high-school highlight videos include back-to-back kickoff return touchdowns against Gilman in 2009. On the second return, he hesitated after catching the ball and appeared to pick out a lane before taking off.
"I think you've got to have good sight on what happens before it happens," said Diggs, who answered questions softly and frequently said "Yes, sir" to reporters. "You've got to know spacing and position. You've got to see that before it happens and make your decision in like two seconds."
Maryland running back Wes Brown said Diggs is more patient than many young returners, taking time to scan the field before taking off.
"He has patience, kind of like (longtime NFL returner) Devin Hester has," said Brown, a freshman who played with Diggs at Good Counsel. "He can lay back and then knows when he wants to attack. After he went back-to-back in the Gilman game, they just stopped kicking to him."