Columbia's Matt McPhearson

Columbia's Matt McPhearson, a rising senior at Riverdale Baptist, will represent Maryland in the nationally televised Under Armour All-America baseball game Aug. 18. (Riverdale Baptist Baseball)

Columbia resident Matt McPhearson will play in the 2012 Under Armour All-America baseball game this Saturday, Aug. 18, at Wrigley Field in Chicago.

The game showcases 38 of the best high school players in the nation, as selected by a committee of Baseball Factory scouts.

McPhearson, a rising senior at Riverdale Baptist in Upper Marlboro, has committed to play for the University of Miami after high school. He is listed as a 6-foot tall, 170-pound lefthanded centerfielder, and is considered to be possibly the fastest player in the class of 2013.

The game will be played at 1:30 p.m. on Saturday afternoon, and will be aired live nationally on the MLB Network.

McPhearson is the only Maryland representative in the game, which last year yielded seven first-round selections in the MLB Amateur Draft.