NBA commissioner Adam Silver has confirmed that raising the league's minimum age from 19 to 20 is among his top priorities.

The league held its annual meeting with college teams this week, and discussed incentives to keep players in college longer before entering the NBA Draft.

Silver told ESPN: "If we're going to be successful in raising the age from 19 to 20, part and parcel in those negotiations goes to the treatment of players on those college campuses and closing the gap between what their scholarships cover and their expenses.

"We haven't looked specifically at creating a financial incentive for them to stay in college. That's been an option that has been raised over the years, but that's not something that is on the table right now.

"I'm reading and listening to college players and the other side saying development may be better outside the NBA or the environment isn't ideal in college. I think those are all things we have to look at."

Silver previously indicated that he would look to push the move through when the collective bargaining agreement is negotiated in three seasons.