the invitation-only nba draft combine was held in chicago from may 9 to 14. the on-court element of the combine took place on may 11 and 12. this year's event had under armour as its primary sponsor. a total of 67 players were invited for this year's nba draft combine, with 5 more named as alternates in the event some players could not come for whatever reason. ten invited players declined to attend for various reasons, including three players completely on the international scale. eighteen more players that were guaranteed invitations were also players testing out their draft stocks during the event. eleven players participating in the event were seniors, the lowest number ever of combine participants who had exhausted their college eligibility. during the event, six different players were deemed injured either before or during this year's draft combine. at the end of the may 24 college deadline, eight players who originally declared for the nba draft and were invited to the draft combine this year, including potential "none-and-done" kentucky freshman redshirt hamidou diallo, ultimately returned to college for at least one more season.