PITTSBURGH — The Pittsburgh Pirates have many top rated prospects that are performing well this season, but one prospect is making the case that fans should start paying attention to him right now. Pirates third base prospect Murf Gray has swung the bat impressively for Single-A Bradenton and recently earned Florida State Player of the Week honors for his performances against the Lakeland Tigers, the Single-A affiliate of the Detroit Tigers at home, April 28-May 3. Gray slashed .455/.518/.846 for an OPS of 1.364, with 10 hits in 22 at-bats, two doubles, two home runs, eight RBI and two walks to four strikeouts. The Pirates infielder is still just a month into his first professional season, but Gray hitting the way he has will surely get himself a chance to earn promotion in the near future. Looking Back a Gray's Incredible Week Gray had an incredible outing in the 13-6 win on April 30, where he had three hits and three RBI.…