This top-of-the-table J2 meeting is less one-sided than the table suggests. Sendai are the stronger side over the season, but at home Niigata play a reactive game that has won all six of their home matches. That home method looks like the kind of opponent that has given Sendai the most trouble. With rain forecast and Sendai able to live with a draw, the match should be tight and low on clear chances.
Sendai under Moriyama take more shots than Niigata over the season. They attack with overlapping wing-backs, late runs from Nakajima and Takeda, Umeki as an aerial target, and Takeda's set pieces. Their dropped points tell a clear story, though: goalless draws with Tokushima and Oita and a 1-1 with Sapporo all came with plenty of shots against sides that sat deep and let Sendai have the ball.
That is exactly how Niigata play at home under Funakoshi. They have had between 36 and 49 percent of the ball in every home game, they protect the box, and they score from crosses and from Matheus Moraes on the break. All six home wins were by a single goal. Their heavy away defeats came in open games, which is a different game state from the one they set up at home.
The key duels are Sendai's wide overloads and Umeki's knock-downs against Niigata's retreating back line, and Moraes against Sendai's rest defence once their wing-backs push on. Onishi is back from suspension for Niigata. Fujiwara's long absence is already part of the home profile, and Sendai's best midfield pair should be fresh after being rested in midweek.
I expect a cagey first half, with Sendai circling and Niigata waiting. A draw keeps Sendai four points clear, so they have no need to force it, and that makes a level game or a narrow home win the main shape. That's why I'm siding with Niigata not to lose at home.