NBA Free Agency: 5 best expiring contracts that could be traded this summer

#1 Nikola Vucevic

San Antonio Spurs v Orlando Magic

Montenegrin center Nikola Vucevic's services will be rendered redundant if new coach Steve Clifford elects to start rookie Mohamed Bamba in the center role for the 2018-19 season. He could turn out as a useful piece in several scenarios - particularly if the Cavaliers are able to hold on to LeBron James, who's opted out to become an unrestricted free agent this summer.

Selected by the Philadelphia 76ers in 2011 with the 16th pick, Vucevic has grown into an above-average starting center in the league over the past couple of seasons - although there are concerns about his ability to be a rim protector or lack thereof.

Through 6 seasons in Orlando, Vucevic has averaged a double-double and has the offensive arsenal to create his own shot even out at the 3-point line. He could be a useful addition to a number of teams as an expiring contract.