The Pittsburgh Pirates (30-27) hope to continue their success at PNC Park this season when they host the Kansas City Royals (24-32) on Saturday evening in the second matchup of a three-game interleague series. Pittsburgh defeated the Royals 4-2 on Friday night, marking their sixth win in their last seven home contests. After struggling mightily at home in recent years, Pittsburgh is 17-11 this season at PNC.

James McDonald (5-2, 2.14 ERA), one of the best pitchers in the big leagues since May 1, takes the mound on Saturday for the Pirates. McDonald has the second-lowest ERA in baseball since that time, at 1.54, and is currently riding a three-game winning streak.

The Royals will send Vin Mazzaro (2-0, 2.25 ERA) to the hill to oppose McDonald. Mazzaro has not fared well against National League teams. He is just 0-5 with a 4.60 ERA in eight starts against the NL.

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