While the Grizzlies and the Miami Heat have made shooting guard Ray Allen a prime free agent target, the Boston Celtics have made it their top priority to re-sign the final member of their Big Three.

With Paul Pierce already under contract, and Kevin Garnett agreeing to a new three-year deal that can't be finalized until July 11, the first day free agents can officially sign contracts, Boston president Danny Ainge has shifted his attention to Allen, the NBA's all-time leader in 3-pointers.