TJ Leaf has announced he will leave UCLA for the 2017 NBA Draft.

"This was a huge decision for me and my family," Leaf said Thursday. "It was definitely one of the hardest decisions in my life.

"This was the most fun year of basketball I've had in my entire life, and I will definitely miss it. But, I cannot wait to start my new journey."

Leaf averaged 16.3 points and 8.2 rebounds.

Leaf is expected to be a mid-first round selection.

Lauri Markkanen has announced he will leave Arizona for the NBA Draft.

Markkanen is expected to be a top-10 pick in the draft.

Markkanen averaged 15.6 points and 7.2 rebounds for the Wildcats while shooting 42.3 percent on three-pointers.

Dennis Smith will leave N.C. State after his freshman season to declare for the 2017 NBA Draft.

"It's always been my dream to try and play in the NBA," Smith told ESPN's Paul Biancardi. "The timing is perfect for me and my family to make this decision. I want to thank all my teammates, coaches and the fans of NC State. I am thankful for Coach [Mark] Gottfried and all that he has done for me."

Smith averaged 18.1 points, 6.2 assists and 4.6 rebounds per game.

Smith is expected to be a top-10 pick in the draft.

Lonzo Ball and Markelle Fultz are widely considered the top-2 players in the 2017 NBA Draft class. The two players figure to be compared to each other endlessly between now and June's draft.

"Markelle's a great player, but I feel I'm better than him," said Ball. "I think I can lead a team better than him," Ball added. "Obviously he's a great scorer -- he's a great player, so I'm not taking that away from him."

Fultz averaged 23.2 points, 5.7 rebounds and 5.9 assists per game as a freshman this season, but Washington had a 9-22 record.

Ball averaged 14.6 points and 7.7 assists per game while leading UCLa to the Sweet 16.

Harry Giles has announced he will declare for the 2017 NBA Draft after one season at Duke.

Giles is expected to be a mid-first round pick. Giles was previously considered a probable top-5 pick in this draft class before suffering a number of injuries.

Giles tore the ACL in his right knee when a high school senior and then underwent left knee surgery in October, which limited his appearances with Duke.

Giles averaged 3.9 points and 3.8 rebounds in 11.5 minutes with Duke.

Drew Eubanks will declare for the 2017 NBA Draft but not hire an agent.

Eubanks averaged 14.5 points, 8.3 rebounds and 2.2 blocks in 32 games this season for Oregon State.

Eubanks is projected to go 42nd overall in Draft Express' mock draft for 2018.

Lonzo Ball announced after UCLA's loss in the Sweet 16 to Kentucky that he will leave the school to enter the 2017 NBA Draft.

"That was my final game for UCLA, and I appreciate all the fans and all the support," Ball said.

Ball had widely been expected to leave UCLA after just one season.

Ball is expected to be a top-3 pick in the draft.

Michael Porter Jr. will attend Missouri for his freshman season.

Porter had previously signed with Washington but asked for his release after they fired Lorenzo Romar as head coach and his father as assistant coach. 

Porter is the top recruit in the incoming class of 2017 and is widely expected to be the top pick in the 2018 NBA Draft.

Porter played his final season of high school basketball for Nathan Hale High School in Seattle where he was coached by Brandon Roy.

Missouri hired Cuonzo Martin this month.

"Last week everything changed for me regarding my college basketball decision. Realizing I would no longer have the opportunity to play for Coach Romar, I've taken the past seven days to give great consideration to my future.

"After a lot of thought, prayer, and talking with my family, I'm excited to announce that next year I will be attending the University of Missouri!

"I'm looking forward to the year ahead with Coach Cuonzo and my new teammates... Together we hope to restore the atmosphere at Mizzou Arena."

Jonathan Isaac has announced his decision to leave Florida State for the 2017 NBA Draft.

Isaac posted his announcement on Instagram while thanking the fans of Florida State.

Isaac is expected to be a top-10 pick as he's one of the more versatile forwards in the draft class.

Michael Porter Jr. has asked for his release from his letter of intent from the University of Washington. 

Porter is widely considered the top recruit in the country.

The decision was prompted by the firing of coach Lorenzo Romar and parts of his coaching staff, including Porter’s father, Michael Porter Sr.

“I was ready to go to UW and make a big difference,” said Porter Jr. said. “Not saying I won’t still go there, but it was unfortunate. At the same time, it’s exciting to see what God has planned for me…I plan to get that (release) and reopen my options. Washington is definitely still on the list.”

Mike Hopkins was hired to replace Romar. 

“I’m not sure what I’m going to do, but I think I probably will meet with him at some point,” Porter Jr. said of Hopkins.