MLB: San Diego 5, Washington 4

WASHINGTON, May 29 (UPI) -- Ryan Ludwick's ninth-inning infield single drove in the go-ahead run Sunday and the San Diego Padres edged Washington 5-4.

Pinch-hitter Jorge Cantu keyed the rally with a one-out double off Drew Storen (4-2). He slid home under the tag of Nationals catcher Wilson Ramos after Ludwick grounded a single off the glove of diving shortstop Ian Desmond, breaking a 4-4 tie.

Luke Gregerson (2-1) earned the victory with two scoreless innings of relief and Heath Bell racked up his 12th save with a 1-2-3 ninth for the Padres, who took the rubber match of a three-game set.

Ludwick finished 3-for-4 with a pair of RBI and Brad Hawpe also drove in two with a pair of hits in San Diego's win.

Nats rookie starter Yunesky Maya was touched for four runs on six hits in a 4 2/3-inning effort.

Jayson Werth went 3-for-4 with an RBI for Washington.