PHILADELPHIA (AP) - Rookie right-hander Jordan Yamamoto won for the third time in three career starts, Garrett Cooper and Brian Anderson hit consecutive homers, and the Miami Marlins beat Philadelphia 6-4 Sunday for the Phillies' seventh straight loss.
JT Riddle homered, doubled and drove in two for Miami, which swept three games in Philadelphia for the first time since August 2009. The Marlins outhit the Phillies 16-4.
Jean Segura had two RBIs for Philadelphia, which has dropped 16 of 22 games to fall well behind the Braves in the NL East. The Phillies entered Sunday trailing by 5 1/2 games after leading Atlanta by 3 1/2 on May 29.
Philadelphia has been outscored 43-15 and outhit 70-45 during the skid. The Phillies were swept for the second straight series and third this season. Philadelphia is 1-8 against the NL East in the last 10 days and will host the division-rival Mets for a four-game set beginning Monday.
The 23-year-old Yamamoto pitched two-hit ball over five innings, allowing two runs and four walks on 99 pitches. He struck out seven and kept his ERA at 0.95.
Nick Anderson gave up a run in the ninth but recorded his first career save.
Cooper extended his hitting streak to 14 games with a first-inning RBI single off Enyel De Los Santos (0-1) that gave Miami a 1-0 lead. Yamamoto walked the first three batters in the bottom of the frame but escaped with just a 2-1 deficit after Segura's two-run single to left.
Riddle put Miami in front for good in the second with a two-run shot to right. It was the third homer in four games for Riddle, who has five on the season. The Marlins went up 4-2 in the third on a double-play groundout before back-to-back two-out drives in the fifth by Cooper and Anderson off Edgar Garcia put Miami ahead 6-2. Cooper has seven homers and Anderson has 10 this season.
De Los Santos, making his first start this season and third in his career, gave up four runs and seven hits in four innings.
Cooper is batting .420 (21 for 50) with two homers, three doubles and seven RBIs during his streak. He also has reached base safely in 20 consecutive games.
Phillies: RHP Tommy Hunter (right forearm strain) pitched a scoreless inning of relief with one strikeout for Class A Clearwater on Sunday.
Marlins: After a day off Monday, open a six-game homestand against Washington on Tuesday with RHP Trevor Richards (3-7, 3.54) facing Nationals RHP Max Scherzer (6-5, 2.62).
Phillies: Begin a four-game home series against the Mets on Monday with RHP Zach Eflin (6-7, 2.83) opposing New York LHP Steven Matz (5-5, 4.28).