NC State said it reported the violations to the NCAA.
According to a news release from the university, Leslie borrowed a car from a friend and former NC State student after an auto accident in May and used it for about a week. The same former student also paid an apartment application fee for Leslie's half brother.
The total value of both - car rental $150 and application fee $260 - will be donated to a charity by Leslie.
The school said the NCAA has agreed to the three game suspension.
NC State said the former student - who it did not name - also admitted giving $1,349 to another former student athlete. That player was also not named. That case is still under investigation.