Sprint ace Tyson Gay will bid to smash the long standing world best for the 200metres on a straight track at the Manchester CityGames on May 16. The 28-year-old world 100m silver medallist will be watched by current holder Tommie Smith, whose record of 19.5seconds was achieved 44 years ago on a cinder track in San Jose, Texas. “Given the advantage of no bend and the surface is a vast improvement...