The Nats' second round pick in 2010, lefthander Sammy Solis brings a competent fastball and reasonable curve from a delivery that's almost sidearm, but it's his straight change that is his best, and that's the plus offering that should be his ticket to MLB success. He took a solid step toward that future in 2011, when he worked his way up from A-ball into high-A Potomac, posting a 6-2 record with a 2.72 ERA and a nice 1.28 WHIP at the higher level.