the double olympic champion will race in birmingham in the first time he 's competed in 1,500 m since 2013 .
the race will be the first time the 32-year-old has competed over 1500m since he broke the european record by clocking three minutes 28.81 seconds in monaco two years ago .
some of the best middle distance runners in the world will be in the field so i will have to be at my best to compete with them .