Donnie Nelson is confident of the Dallas Mavericks' chances of signing either Jermaine O'Neal or Josh Smith.

The Mavericks need to improve their frontcourt depth after their trade of Brandan Wright in the deal for Rajon Rondo.

"I feel pretty good that we'll be able to come to terms with one," Nelson said Tuesday on ESPN Dallas 103.3 FM. "Certainly to come up with both would be just hitting a grand slam home run. Look, there's a long line for suitors on both fronts.

"I think the fact that Jermaine has chosen Dallas to be his home in the long term certainly has its place and resonates with time with family and such. And here's a guy who has a long history not only with our coach but with our point guard/quarterback. That certainly has a place.

"With Josh, again, we're one of a number of potential teams and suitors. It's got to be right with him and with us. We're kind of in the swings of putting our best foot forward. If we're able to hit that one home, it just would be a real, real nice get for us."