Former Celtic and Heat standout Ray Allen is leaning towards returning for a 19th NBA season and joining former teammate LeBron James with the Cleveland Cavaliers, according to a league source.

Allen, who turned 39 Sunday, has been pondering retirement since the Heat lost in the NBA Finals to the San Antonio Spurs last month.

But James, along with ex-Heat swingman Mike Miller, who signed with the Cavaliers earlier this month, have been lobbying Allen to join them with the resurrected franchise.