He has been injuring for more than 5 years. He has inconsistent performances from 2011 to 2016. in 2011, he ran 26;46 10k to amaze us but limping in world champs to let mo farah win. in 2012 , 2013, 2014, 2016 he showed up in some of the British 10k race to run around 28 10k which is not impressive on his standards. he only gave us light hopes but diminished it before our eyes.
in 2014 he ran first marathon and injuried and injuried again.
until lately, he ran only 2;06 marathon
now he is not going in Rio, then we will be turning 38 in 2020 olympics games
his legs will not be eligible to suffer from high mileage of marathon training.
why is this guy forever injuring? every runner can return from injuries with a maximum of half year. his legs are fragile as if they were made of paper. he ran only average of 120 km per week during his peak and still have old injuries.