Itachi never soloed anyone,he is just an overhyped character whose **** is being riden by all of these fanboys
Sasuke is the true solo sing,he can turn water into wine and piss into gold!!!!
At the end of the manga you will see Sasuke soloing Naruto with a simple Susanoo punch cause Naruto is also a weakling
Hashirama will be asking for Sasuke DNA by the end of this shit....