Tony Wroten Jr. has impressed with his work ethic and willingness to learn, but may struggle to carve out minutes in the Grizzlies rotation.

"We'll see how fast he progresses," Lionel Hollins said before a recent Summer League game. "It will be difficult for him because we're deep there. If he doesn't make it, there's a chance he could spend time in (D-League) Reno.

"Like a lot of one-and-done guys, Tony still has a lot of work to do on the defensive end. He's never been called on to play defense the way we will want him to play at this level. It's a big adjustment.

"It's entirely different here. It's not like AAU or high school, where you can be the focus and you can play the game the way you like to play it. Here there are a lot of sacrifices to be made. This is a business. Already he's seeing that. Practices are 2 ½ to three hours long. Every day."

Wroten, 19, was the 25th overall pick in the draft.

"Obviously, I don't want to be in the D-League," he said. "So I have to come in and work hard so I don't have to play in the D-League. From now until November, I have to work on everything. From now on, I can't take no days off."