Mavericks' once-impossible trade is finally back in play

Caleb Martin once looked like an untradeable asset, but he is beginning to reclaim value at the perfect time.

Dallas Mavericks, Caleb Martin | Rocky Widner/GettyImagesCaleb Martin is playing the best basketball of his Dallas Mavericks career as of late, and he is raising his trade value at the most optimal time. The NBA's February 5 trade deadline is just over two weeks away, and if the Mavs are looking to move on from Caleb Martin, they are beginning to get some favorable performances that could intrigue rival teams to trade for the seventh-year wing.

With the Mavs' place in the standings and plan to make Cooper Flagg the centerpiece of their rebuild, they need as many trade pieces as…