With the Boston Celtics now under the NBA's second tax apron, their next priority is keeping their free agent big men Al Horford and Luke Kornet. It could be tricky for them to keep either of them, let alone both, as they will likely have markets.

The New York Knicks have reportedly joined the Los Angeles Lakers and Golden State Warriors in pursuit of a champion from the Boston Celtics in free agency.

The Los Angeles Lakers, New York Knicks, Golden State Warriors and Boston Celtics—the NBA's four marquee franchises—will get their chance to add at least one rookie to their roster in the second round on Thursday.