Spring training trades aren't easy. Spring training trades for closers may be even tougher.

But the Tigers now realize they have little choice.

With hard-throwing rookie Bruce Rondon already showing he can't handle the job, and with no other good options available in their own camp, the Tigers are already pushing hard to find a closer on the trade market, according to major-league sources.

Now, will they be able to find one?

The Nationals would seem to have an extra closer, after signing Rafael Soriano to add to a bullpen that already includes Drew Storen and Tyler Clippard. But the Nationals are telling teams that they have no interest in moving any of their late-inning relievers, because they want to be able to match up with the rival Braves at the end of games.

The Red Sox have an extra closer after trading for Joel Hanrahan. But it's not clear how much the Tigers think of Andrew Bailey. As of Tuesday morning, the Tigers had yet to contact the Red Sox about him.

The Tigers have six starting pitchers, so they could make Rick Porcello available. But Porcello has looked very good this spring, so it's unlikely that the Tigers would want to deal him for anything but a proven closer.

And there may not be any of those available.

Two closers remain unsigned on the free-agent market. But the Tigers have basically ruled out a reunion with Jose Valverde, not surprising considering that Valverde's stay in Detroit ended with an ugly postseason failure last October. And as of yet, the Tigers don't seem that interested in Francisco Rodriguez.