According to Wikipedia (emphasis mine for clarity),
Sumo (相撲 sumō?) is ... where a rikishi (wrestler) attempts to force another wrestler ... into touching the ground with anything other than the soles of the feet (hereafter referred to as "touch/touches/touching the ground").
I was watching footage of a takedown in which the one giving the takedown nearly touches the ground before his opponent (and was quite amazed he didn't touch the ground).
Can a sumo wrestler touch the ground before his opponent in the act of forcing him to the ground? Would this be forcing himself into touching the ground, and thus allowable, or unallowable due to touching the ground in any way?