2017 London Marathon: Jo Pavey says drugs cheats are 'ruining the sport'

2017 Virgin Money London Marathon – Sunday, 23 April Start times: 08:55 BST – Elite wheelchair races, 09:00 – other elite Para races, 09:15 – elite women, 10:00 – elite men and mass races Watch: Live on BBC Two and BBC One with extra coverage of the elite races and the finish line on Red…