Duke head coach Mike Krzyzewski has his first summer without USA Basketball responsibilities in almost ten years, and in his talks with ESPN's Seth Greenberg he said he's feeling healthier than ever.

"Not having the responsibility of USA Basketball now has given me the opportunity this Spring and Summer to really focus on our program," Krzyzewski said. "We've made some upgrades and create a course of action going in to next season that would prove to be not only successful for the season, but as we continue our program."

According to Krzyzewski, this past summer was the most negatively impactful for his preparation going in to the season because of USA Basketball duties.

"Last summer was probably the most (time consuming)," he said. "Because I missed all of recruiting in July and when my new guys got here and we got back, my guys were about two months ahead of me. We encountered a lot of injuries and it would have been nice if I had that time before then to develop closer relationships and help them."

Coach K did break a bit of news on the talk, as he said Frank Jackson suffered a "Jones fracture" in his foot in late May that caused him to get surgery and miss the Summer League. Duke has one of the best rosters in the country this upcoming season, but last year injuries and health issues for Krzyzewski caused some hiccups along the way for a team that was bringing in a number of new players. This year, Grayson Allen is the lone upperclassman on a talented, but very young roster, and according to Coach K, Allen is finally healthy.

"We had (Grayson) away from basketball for about three months," said Krzyzewski. "He had a minor operation on his ankle. He's now fully recovered, so his athleticism is back. He's happy and he's in shape. I'm really happy where Grayson is at emotionally, physically and he's really excited about leading these guys."

Gary Trent also said to Coach K after one of the team's summer workouts that he had no idea how good Grayson Allen is. Coach K said, "Well he's healthy."

Speaking about this upcoming season, Krzyzewski noted that sophomore Marques Bolden has lost 15 pounds since the end of last season.