The Cavaliers are eager to acquire Andrew Bynum in a three-way trade with the Lakers and Magic involving Dwight Howard, but they are not prepared to move forward without an assurance from Bynum.

"Cleveland will only do the deal if Bynum extends," a league official directly involved in the talks told Yahoo! Sports.

The Lakers want the framework of a trade to be agreed upon before the Cavaliers begin engaging Bynum on an extension.