MILWAUKEE BREWERSPhotos: Pirates 6, Brewers 4Brewers closer Corey Knebel hangs his head as he walks off the field with the Pirates celebrating in the background after Adam Frazier ended the game with a two-run homer in the bottom of the ninth on Wednesday night at PNC Park.Getty ImagesAdam Frazier (rights) of the Pirates celebrates with his teammates after hitting a two-run walk-off homer off Brewers closer Corey Knebel in the bottom of the ninth inning Wednesday night in Pittsburgh.Philip G. Pavely / USA TODAY SportsNeil Walker heads to the Brewers dugout after scoring the go-ahead run at the time on a bases-loaded walk against the Pirates as Domingo Santana (right) and Ryan Braun wait to congratulate him on Wednesday night.Philip G. Pavely / USA TODAY SportBrewers second baseman Hernan Perez loses his grip on the ball as he is unable to complete a potential double play during the sixth inning on Wednesday night in Pittsburgh.Philip G. Pavely / USA TODAY SportOrlando Arcia of the Brewers sits on second base after being forced out in the fifth inning against the Pirates on Wednesday night at at PNC Park.Philip G. Pavely / USA TODAY SportAdam Frazier hits a two-run triple in the third inning for Pirates off Brewers starter Aaron Wilkerson on Wednesday night at PNC Park.Getty ImagesAaron Wilkerson of the Brewers, making his first major-league start, cruises through the first two inning against the Pirates before finding trouble in the third. The rookie was charge with three earned runs in the frame, in which he was taken out with just one out.Associated PressBrewers shortstop Orlando Arcia tags out Sterling Marte of the Pirates in the bottom of the third inning on Wednesday night at PNC Park.Philip G. Pavely / USA TODAY SportPirates starting pitcher Steven Brault bows his head in frustration as Domingo Santana of the Brewers circles the bases after hitting a solo homer in the third inning during on Wednesday night at PNC Park.Getty ImagesDomingo Santana of the Brewers round the bases after hitting a solo home run off Pirates starter Steven Brault in the third inning on Wednesday night in Pittsburgh.Gene J. Puskar, Associated PressJesus Aguilar bumps fists with Brewers third base coach Ed Sedar after blasting a solo homer in the top of the second inning for the Brewers on Wednesday night in Pittsburgh.Philip G. Pavely / USA TODAY Sport