Deriba Merga

Deriba Merga of Ethiopia celebrates after winning the men's division of the 113th running of the Boston Marathon in Boston, Massachusetts on April 20, 2008 in Boston, Massachusetts. (Photo by Jim Rogash/Getty Images)

Deriba Merga Late Addition To 117th Boston Marathon Field

Another former Boston Marathon champion will be back for the 117th running of the famous race in April.