Raonic, Tomic, Dolgopolov, Dmitrov. Harrison. Nishikori. A worthless generation. Tomic has no speed. Dmitrov has no power. Dolgopolov has no consistency. Raonic is just a serve and the courts are too slow everywhere for that to be enough. Harrison is fat. Nishikori is short and injury prone. None of them will make it to top 5 in the rankings, in 5 years time when Djoker/Murray and Nadal start breaking down, that worthless generation won't be ones to take their place and win slams. They will be superseded by a new generation of young players we haven't even heard of yet. Maybe if Harrison loses weight he could make it, but that's it. He's the only one with a fixable weakness.