KANSAS CITY— Travis Ishikawa, claimed by the Pirates off waivers two weeks ago, slammed two doubles and a home run, and drove in four runs as the Pirates held off late Royals comeback attempts for a 10-7 win on Monday night in front of 38,169 fans at Kauffman Stadium.Buccos closer Mark Melancon worked around a ninth-inning leadoff walk to record his Majors’ leading 30th save of the season and the 100th of his career. It also was Melancon’s 28th consecutive conversion.After the Royals pulled within 8-7 in the seventh, Neil Walker ripped a two-run triple to right in the eighth to keep the Pirates safely in front. A.J. Burnett wobbled through six innings to get the win -- he gave up 11 hits and six runs.