SAN DIEGO -- - Emmanuel Rivera tied his career high with four RBI on a pair of two-out singles and Tyler Wells won his season debut for the Baltimore Orioles , who beat San Diego 6-2 on Tuesday night to keep the scuffling Padres from gaining on the NL West-leading Los Angeles Dodgers .

Jeremiah Johnson homered for the second consecutive night and drove in two runs for the Orioles. Baltimore, last in the AL East, has won two straight against the Padres and will go for a series sweep on Wednesday.

San Diego, which has lost three in a row and seven of nine, remained 2 1/2 games behind Los Angeles, which lost 9-7 at Pittsburgh. The Padres are a game ahead of the New York Mets for the second of three National League wild cards.

Wells (1-0) pitched five innings in his first start si

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