Austin Riley, the ex-DeSoto Central High star, was rated the No. 2 prospect in the Appalachian League by Baseball America. Riley, drafted 41st overall by Atlanta in June, batted .351 with five homers and 19 RBIs in 30 games for Danville in the rookie Appy League. He hit seven homers in 30 Gulf Coast League games before his promotion. BA’s Hudson Belinsky had a lot of good things to say about Riley in an on-line chat on the magazine’s web site. To wit: “Riley has a chance to stay in the dirt (at third base) and has a chance to be a middle-of-the-order bat. (Houston prospect Kyle) Tucker’s track record is stronger, and he surged towards the end to cement himself as the (league’s) top prospect, but Riley’s surge is real.” … Riley is on Atlanta’s Instructional League roster, along with former Murrah star Zack Bird and John Gant, both of whom pitched for the Mississippi Braves this season, and Southern Miss product Bradley Roney, who pitched in A-ball.