Washington right-hander Cade Cavalli will try for his third straight win when the Nationals conclude their series against the visiting Pittsburgh Pirates on Sunday.

The Nationals (61-87), who have won eight of their past 12 games, will be trying to avoid their first series loss in September after winning two and splitting one.

Pittsburgh (65-84) ended a seven-game losing streak and evened the weekend series with a 5-1 win on Saturday.

Cavalli (3-1, 4.67 ERA) will be opposed by Pirates right-hander Mike Burrows (2-4, 3.99) in the finale.

The 27-year-old Cavalli allowed four earned runs in 10 innings in his past two starts -- both against the Miami Marlins -- while striking out seven and walking two. On Monday, he gave up two runs on six hits in five innings in a 15-7 win.

"He's got nas

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