Sekwake Onosato notched a ninth straight win on Monday, September 16 to maintain a perfect record and a one-win lead over Kirishima on Day 9 at the Autumn Basho.
Onosato was fast and powerful at the face-off, putting Wakamotoharu (5-4) on his heels immediately after the tachiai before using a frontal crush-out to dispatch the third-ranked maegashira.
The 24-year-old is taking advantage of superior face-offs to completely overwhelm his opponents at the outset.
At a perfect 9-0, Onosato needs just three more wins in the 15-day meet to secure the required number of 33 over three consecutive tournaments to earn promotion to the second-highest rank of ozeki.
Sekiwake Kirishima (8-1) quickly got a double-handed grip on the belt of struggling Shonannoumi and calmly waltzed the fifth-ranked maegashira out. Shonannoumi put up little resistance and fell to an unflattering 1-8.
Onosato and Kirishima will face each other on Tuesday (Day 10) in a bout that will have championship implications. Onosato is 2-0 in previous matches against the Mongolian.
Ura closes in on a victory over Kotozakura. (KYODO)
Ura Stuns Kotozakura
There was a big upset in the day's final bout at Ryogoku Kokugikan in Tokyo when No 5 maegashira Ura pushed out ozeki Kotozakura to improve to 5-4.
Kotozakura, who came into the tournament bidding for his first Emperor's Cup, looked listless and dropped to 6-3.
"I gave it my all and just had the attitude of refusing to lose, the support of the fans means a lot to me," Ura said.
He added, "I will just try to give it my all in the remainder of the tournament."
After a subpar first week of the tournament, Mongolian ozeki Hoshoryu deployed a textbook beltless arm throw to topple komusubi Hiradoumi. As a result, both grapplers are now 5-4.
Wakatakakage (right) clashes with Midorifuji on Day 9. (KYODO)
In the Title Hunt at the Autumn Basho
No 7 maegashira Wakatakakage is one of four wrestlers at 7-2 after he outlasted pesky Midorifuji in one of the day's longer bouts.
Wakatakakage pushed the smaller Midorifuji to the edge but the eighth-ranked maegashira stood his ground before the former sekiwake eventually pushed his opponent out. Midorifuji stands at 4-5.
Eighth-ranked maegashira Endo dodged to his left at the face-off and then swatted down Gonoyama to remain in the chase pack at 7-2. Sixth-ranked maegashira Gonoyama fell to 3-6.
Further down the ranks, rank-and-filers Nishikigi and Takayasu both won their bouts to improve to 7-2.