PIRATES IN THE PROS: ECU Baseball alum and Toronto Blue Jays rookie sensation Trey Yesavage is picturing a very different start to his spring training this year. He’s also working on a new pitch. “It’s going to be very different,” Yesavage told reporters. “I’m going to be on the big league side. (I started) last year on the minor league side, playing on the backfield games. This year it should be a lot different, which I’m excited about.” Yesavage has added a curveball to his arsenal. “It’s the