Just when the San Diego Padres looked dead in the water against the Milwaukee Brewers in the second game of the series, slugger Gavin Sheets stepped up to the plate. Sheets has been one of the more clutch players on the Padres roster this year, and he delivered for the team again. Sheets hit a three-run home run with two outs in the top of the ninth inning to help give San Diego another comeback win. And with this clutch hit, Sheets became the first player in MLB history to hit a go-ahead three-run home run in the ninth inning three different times in the same season. No player in MLB history has ever done this. Sheets has done it in mid-May. Gavin Sheets of the @Padres is the first player in MLB history to hit a go-ahead 3+ run HR in the 9th inning 3 times in the same season (April 10, April 23 & tonight).…