One of the more interesting developments this season has been the availability of John Wall. The five-time All-Star is supposedly healthy, but has yet to suit up for the Houston Rockets this season. The team has reportedly been open to moving him; however, the league-wide interest has been minimal, largely due to Wall's massive contract.
John Wall is in the third year of his four-year / $170M contract extension, leaving a significant amount of remaining salary for any team that opts to trade for him. Wall has a $47M player option for next season that he is almost certain to take, so not only would a potential deal need to match the $44M he is making this season, but it would also require a team to likely pay him $47M next season as well.