By C. Trent Rosecrans
"How do I know?" Mattingly answered, according to the Los Angeles Times.
Matt Guerrier and Mike MacDougal both have saves this season, but Mattingly said he'd rather keep those two pitching in the middle innings -- and as a safety net if one of his younger relievers gets in trouble and have to leave in the middle of an inning.
That leaves him with Javy Guerra, Scott Elbert and Rubby De La Rosa as the choice to close. All three have recently been called up from the minors.Combined, the three have pitched 39 1/3 innings in the big leagues -- and 30 1/3 of those belong to the lefty Elbert, who appeared in 19 games for the Dodgers in 2009.
The three have pitched well enough in their limited appearances so far.
Elbert, 25, had given up just one hit and a walk, while striking out five in four scoreless innings before Monday, when he allowed a hit and a walk, but no runs or outs in his six-pitch outing. He was rescued by Guerrier, just as Mattingly said he wanted to do.
Guerra, 25, came into Monday's game having allowed four hits and two walks in six innings, allowing two runs, while walking two and striking out four. He earned a save last week against the Astros.
De La Rosa, 22, picked up the win in his last outing, Friday against the Marlins when he allowed a run on two hits in two innings of work. It was just the second outing of his career, having made his big-league debut three days earlier with a scoreless inning against the Astros. The hard-throwing right hander was 7-2 with a 2.37 ERA and six saves last season at Class A and Double-A.
Mattingly didn't need to tip his hand Monday, as the Dodgers led 7-1 going into the ninth, a non-save situation. However, Guerra finished out the game for Los Angeles, allowing two hits, but no runs, in his inning of work.For more baseball news, rumors and analysis, follow @cbssportsmlb on Twitter or subscribe to the RSS feed.