The Celtics do have limitations in terms of who they can sign on the buyout market. Boston is above the second apron so they aren’t allowed to sign players that were making more than the non-taxpayer midlevel exception ($12.9 million) when they were bought out.

From trade candidates to potential targets to the types of deals they can and can’t make, here’s what you need to know about the Celtics ahead of Thursday’s NBA trade deadline.

The Boston Celtics surely won't be the NBA's most active team leading up to Thursday's 3 p.m. ET trade deadline. However, they can't just sit out

CLEVELAND -- The Celtics are riding high entering the trade deadline, putting together their fourth straight win on Tuesday night against the Cleveland Cavaliers. Despite that momentum, the team could still some tinkering heading into the trade deadline when it comes to the bottom of their depth chart.

After a fairly quiet NBA trade deadline by the Boston Celtics, the defending champs will now hit the buyout market to fill at least one open roster spot