Are Nationals interested in Kyle Lohse?

VIERA, Fla. -- The Washington Nationals might have the deepest roster in baseball. And maybe the deepest pitching staff in baseball. But apparently, not deep enough.

They're still shopping for one more starting pitcher. Just in case.

In case Gio Gonzalez disappears for 50 games, via a PED suspension.

In case Dan Haren's back flares up.

In case the elbows of Stephen Strasburg or Jordan Zimmermann remind them they're not all that far removed from visits to their friendly neighborhood Tommy John surgeon.

In case of, well, whatever.

So there were rumblings around their camp Tuesday, including one emanating from the Washington Post's dialed in beat writer, Adam Kilgore, that there was still a free-agent starter out there who makes way too much sense:

Kyle Lohse.

After all, he pitches for a living. He's coming off a year in which he went 16-3 for the Cardinals. It's the second week of February, and he's still unemployed. And his agent is a fellow named Scott Boras, who has, shall we say, done a little business with this team over the last few years.

So get out your calculators and do the math. Two plus two equals …

A lot less than Lohse and Boras are still looking for.

Asked Tuesday about the chances of this team reeling in Lohse, one Nationals source replied, succinctly: “I don’t see that happening.”

Why? Because the Nationals are looking for depth, not a long-term commitment to a guy who would cost them a first-round pick and would expect to supplant a member of the Nationals' current rotation.

So who's a more likely name to fit that bill? It's still free-agent right-hander Javier Vazquez, whom the Nationals have scouted extensively this winter in Puerto Rico -- including a firsthand look from GM Mike Rizzo himself.

Vazquez is currently rehabbing from minor knee surgery, but hopes to pitch for Puerto Rico in the World Baseball Classic next month. So stay tuned on that front.