Germantown (Tenn.) HS shortstop Jason Thompson, an 11th-round pick, has agreed to terms with the Red Sox on a $300,000 bonus.

A 2008 Aflac all-American, Thompson was Baseball America’s top-rated high school position player in Tennessee this spring. He’s a 6-foot-1, 180-pound switch-hitter with good athleticism, plus speed and solid arm strength. He profiles more as a second or third baseman, and area scouts wanted to see him drive the ball more consistently. He had committed to Louisville.