Japan vs. Croatia (Monday, 3.00pm)
Japan manager Moriyasu witnessed defender Ko Itakura pick up his second yellow card of the World Cup in the win over Spain, meaning that he will be suspended for the last-16 battle, so Takehiro Tomiyasu should come in to deputise after also performing well off the bench in midweek.
Stuttgart midfielder Wataru Endo shook off a fitness concern to come on as a substitute in that game, and right-back Hiroki Sakai has also rejoined training, but Takefusa Kubo is a fresh doubt due to muscular discomfort.
Not for the first time in Qatar, the Japan boss is facing the best kind of selection dilemma in the final third, where Doan has surely done enough to come in for the stricken Kubo, but Mitoma's efforts may not be enough to edge out Daichi Kamada.
As for Croatia, Dalic has already confirmed that he will be working with a fully-fit squad for Monday's match, but veteran pair Luka Modric and Dejan Lovren will miss any potential quarter-final if they are booked here.
Neither man will lose their place in the XI here, though, with Dalic set to stick with his tried-and-tested 4-3-3 formula, but there could be scope for a change or two in the final third.
Andrej Kramaric and Marko Livaja both failed to shine in the goalless draw with Belgium, and Dalic is not short of options in attack, where Bruno Petkovic, Mislav Orsic, Nikola Vlasic and Mario Pasalic are all vying for opportunities.
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> How Croatia could line up against Japan
> How Japan could line up against Croatia
Brazil vs. South Korea (Monday, 7.00pm)
The Brazil treatment room has been well-occupied during their short time in Qatar, but the Selecao doctor Rodrigo Lasmar has provided a positive update on Neymar, who is in with a chance of recovering from an ankle injury in time to start against South Korea.
However, Tite has lost both Gabriel Jesus and Alex Telles for the remainder of the tournament after both men sustained knee problems in the clash with Cameroon, although the former was always expected to drop out for Richarlison here.
Telles's withdrawal and Alex Sandro's hip problem has left Tite short at left-back, but Danilo is making good progress in his recovery from an ankle sprain of his own and could deputise on that side, with Eder Militao occupying the right flank.
Meanwhile, South Korea's Hwang had been dealing with hamstring pain throughout the tournament before coming up with the goal that would send his nation through, so Lee Jae-sung may now be fearing for his place in the XI.
Kim Min-jae was rested for the clash with Portugal due to calf discomfort and should now be fit enough to return to the first XI, although Lee Kang-in and Kim Young-gwon also came off with physical problems against Portugal and will need a once-over.
Neither man is thought to be nursing anything that would affect their participation for Monday, where talisman Son Heung-min will hope to improve on a paltry tally of one goal from his last 13 shots at the World Cup.
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