The Los Angeles Lakers and Cleveland Cavaliers have stalled their trade discussions centered on Pau Gasol for Andrew Bynum, according to sources.

The talks are not entirely dead, but are described as no longer progressing.

The Cavaliers have until Jan. 7 to trade Bynum before his contract becomes fully guaranteed.

The major issue is the Lakers' insistence on acquiring an additional asset from the Cavaliers beyond Bynum.

The Lakers would save more than $20 million in salary and luxury taxes by doing the deal.