Robinson doesn't appear likely to stay with the Celtics this season, as he's an established veteran and Boston is in major overhaul-with-youth mode. The key here for the Celts is Robinson's contract expires after this season (while Nelson's had another year on it), so it'll be easier to buy out Robinson than it would have been to buy out Nelson.

Robinson didn't pan out as star Ty Lawson's backup this season, so perhaps Nelson can be a better fit. Then again, it will be surprising if the Nuggets keep Nelson around long since, like the Celtics, they now seem to be in 'sell/rebuild' mode. Don't be surprised if Nelson is packaged in another deal soon.

This trade has few fantasy implications if any. Nelson and Robinson have both been disappointing role players this season, and that doesn't look likely to change even if either winds up in a better fantasy situation at some point the rest of the way.