Angels outfielder Mike Trout was named MLB.com's top prospect heading into the 2011 season on Tuesday night. MLB.com polled industry sources, including scouts and scouting directors to compile the list. Rounding out the top five are right-handed pitcher Jeremy Hellickson of the Rays, Nationals outfielder Bryce Harper, Phillies outfielder Domonic Brown and Mariners second baseman Dustin Ackley. Trout, one of two Angels first-round choices in the 2009 First-Year Player Draft, turned 19 on Aug. 7 in the midst of an eye-popping 2010 season. After hitting .362 with 45 steals and a .526 slugging mark at Class A Cedar Rapids, where he would be named the Midwest League MVP.