Not really no - and IIR the ancient form of Sumo was "Sumai" There is probably some kind of WAY back link through certain Jiu Jutsu Ry Ha, but thats about it
It's interested that the term 相撲 (Hsian Pu, Sumo?) was used in Chinese wrestling during 221BC - 206BC. Although the Qin (秦) Dynasty (221BC-206BC), ... it was also known as “Hsian Pu (相撲),” ... http://sjnation.com/site/?page_id=170