MILWAUKEE, WI (WHBL) - The Brewers lost to the Pirates on Saturday night by a final of 6-4.  The Brew Crew led the game, 4-3, after sixinnings.  But two key fielding errors and a passed ball in a disastrous seventh inning gave the Pirates the lead for good.  Those mistakes negated a good performance from pitcher Marco Estrada, who struck out 7 of the first 10 batters he faced.  Estrada finished with 11 total strikeouts before leaving the game in the sixth inning.  The series wraps up this afternoon with coverage on WHBL beginning at 12:35.