Mary Keitany, Edna Kiplagat, Florence Kiplagat and Priscah Jeptoo, together with Ethiopia's Aselefech Mergia, are among the key contenders in a strong elite women's London Marathon line-up
Brasher looks back on the first London Marathon in 1981 and ahead to this year's event on Sunday featuring the "greatest ever line-up" of male and female athletes
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