Oakland Athletics' Stephen Piscotty celebrates with teammates after a game-ending grand slam against the Texas Rangers during the ninth inning of a baseball game in Oakland, Calif., Tuesday, Aug. 4, 2020. (AP Photo/Jed Jacobsohn)OAKLAND, Calif. Stephen Piscotty hit Oaklands second walkoff grand slam of the year and the Athletics beat the Texas Rangers 5-1 Tuesday night for their fourth straight win. Volquez retired Robbie Grossman on a popup before Piscotty hit a first-pitch drive over the wall in center to match the opening night 10th-inning slam by Matt Olson against the Angels. The 22-year-old lefty was the youngest As pitcher to start a game since Brett Anderson in 2010 and lived up to the hype. He overpowered the Rangers at times, striking out Joey Gallo on a 96 mph to end the first.