The Pittsburgh Pirates begin a three-game series with the Milwaukee Brewers tonight at PNC Park. First pitch is 6:35pm. Mitch Keller will make his fourth start of the season for the Pirates. The Bucs enter the game 8-8. The Brewers are 10-7 after losing to San Francisco 4-2 last night. They are tied with the St. Louis Cardinals for first place in the National League Central Division.