Ohio State announced the signing of four student-athletes to national letters of intent on Wednesday.

Making it official for the Buckeyes were three ESPN 100 prospects -- shooting guard Austin Grandstaff (No. 45 overall), center Daniel Giddens (No. 61) and point guard A.J. Harris (No. 72) -- along with four-star small forward Mickey Mitchell.

Head coach Thad Matta's 2015 class is currently ranked No. 8 on ESPN.com.