The Dallas Mavericks' most likely player to be moved in a trade this season has been Daniel Gafford, according to recent rumors, but getting rid of Gafford would leave Dallas with a massive hole down low that they wouldn't be able to come back from.
The Mavericks' three-headed monster of Gafford, Anthony Davis, and Dereck Lively II hasn't been healthy at the same time for a single game this season, and Gafford has been the most reliable big in this group when it comes to availability. He has played in nine games despite missing the first five games of the year with an ankle sprain, and trading him would put immense pressure on Lively II and Davis to stay healthy.