Walker Kessler averaged 11.4 points and 8.1 rebounds and ranked second nationally with 4.6 blocked shots per game. (Bob Donnan-USA TODAY Sports)

AUBURN, Ala. (AP) — Auburn center Walker Kessler, who was chosen the nation’s top defensive player, plans to enter the NBA Draft.

The 7-foot-1 North Carolina transfer announced his decision Sunday on social media. Kessler averaged 11.4 points and 8.1 rebounds and ranked second nationally with 4.6 blocked shots per game.

The sophomore helped lead Auburn to the program’s first No. 1 ranking and a regular-season Southeastern Conference title in his lone season with the Tigers.

Kessler is widely regarded as a potential first-round pick but has until June 1 to withdraw from the Draft.

Auburn freshman forward Jabari Smith, regarded as a potential No. 1 pick, hasn’t announced his decision yet.

Kessler was named the Naismith Men’s Defensive player of the year on Sunday, an award given by the Atlanta Tipoff Club.

Kessler was a first-team All-SEC performer and third-team Associated Press All-American. He had a pair of triple-doubles in the season, reaching double digits in points, rebounds and blocks.