Match ends, Japan 2, Senegal 2.
Japan and Senegal remain well placed to reach the knockout stage of the World Cup - and a last-16 date with England or Belgium - after an entertaining draw in Ekaterinburg.
Sadio Mane put Senegal ahead from close range after an awful mistake by Eiji Kawashima, the ball flying past the Japan keeper after his attempted punched clearance hit the Liverpool forward.
Japan were level before half-time through Takashi Inui's lovely curling finish, before Yuya Osako hit the crossbar.
Nineteen-year-old defender Moussa Wague thought he had sealed Senegal's second straight Group H win with a fine finish from an angle but substitute Keisuke Honda salvaged a point for Japan moments after coming on.
Japan and Senegal have four points after two games, while Group H rivals Poland and Colombia are both chasing their first points of the tournament when they meet in Kazan at 19:00 BST.
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Senegal frustrated by late equaliser
Despite another point, Senegal will be disappointed they could not follow up their 2-1 win over Poland last week by becoming the first African side to win two group games since Ghana in 2006.
But 16 years on from their debut World Cup, the Teranga Lions continue to win new fans in Russia.
While Egypt, Morocco and Tunisia are already making plans to return home after failing to secure a point, Senegal can still ensure Africa has at least one representative in the last 16.
However, Aliou Cisse will be frustrated his players failed to build on Mane's opener after Kawashima's howler.
Senegal were well in control but failed to build on their strong start and Inui's smart finish, after Yuto Nagatomo created the chance, saw Japan draw level with their first shot on target.
Even after Wague restored Senegal's advantage with a sweeping finish, they were unable to see the game out - keeper Khadim N'Diaye's failed clearance leading to Honda's equaliser.
In 2002, the likes of Henri Camara and El Hadji Diouf helped Senegal reach the quarter-finals under Bruno Metsu. If Senegal's class of 2018 hope to emulate that achievement they will have to cut out the mistakes.
Hard-working Japan rewarded with a point
Japan were one of the first teams to book their place in Russia, qualifying last August.
Having gone out early in Brazil four years ago with one point, they now have four at this tournament and could be set for an extended stay.
They started slowly and Kawashima's blunder threatened to prove costly.
However, Japan regained their composure and took control before the interval before wasting a glorious chance to take the lead for the first time with the game 1-1, Osako failing to connect right in front of Senegal's net.
Japan were gifted their equaliser by Senegal's keeper, with Honda now the top-scoring Asian player in World Cup history, netting four goals in nine appearances in the competition.
However, they deserved that moment of fortune after a hard-working performance.
Man of the match - Sadio Mane (Senegal)
'We were not very good frankly' - what they said
Senegal boss Aliou Cisse: "Of course we have regrets. We must acknowledge that we didn't see a great Senegalese performance in comparison to the match against Poland.
"We were not very good frankly, and Japan were the better team, I have to admit that. But despite that fact, we led twice and what's annoying for me is the two goals we conceded.
"Japan played as expected; they are a very technical team with such good quality in that respect. We pressured them well at the start and they made some errors, which we exploited.
"But as soon as we gave them some space, it became difficult for us. Now we have to hope for the best when we face Colombia."
Japan boss Akira Nishino: "We knew Senegal were not a team we could win easily against but the team were calm after conceding goals and it was positive that we were able to equalise twice.
"We constructed attacks well and played in our own rhythm. The substitutions also worked well and I think I did very well with the timing of those.
"The players were very confident and positive, and I myself thought we could have gone for the victory.
"But Senegal are a very strong team and I hope that this result will lead to more success in our next match."
Why Honda loves the World Cup - the stats
- Keisuke Honda scored in his third different World Cup finals tournament for Japan (2010, 2014, 2018) - he is the first Japanese player to do this.
- Honda's goal was his 37th for Japan, tying him level with Hiromi Hara as the fourth highest goalscorer for the national team.
- Senegal have not lost any of the 15 international matches that Sadio Mane has scored in for them (W9 D6 L0).
- Senegal's 19-year-old Moussa Wague became only the second teenager to score at the 2018 World Cup, after France's Kylian Mbappe.
Both teams are back in action on Thursday at 15:00 BST for their final group games with Japan facing Poland in Volgograd and Senegal taking on Colombia in Samara.
- 19H Sakai
- 17HasebeBooked at 90mins
- 8HaraguchiSubstituted forOkazakiat 75'minutes
- 10KagawaSubstituted forHondaat 72'minutes
- 14InuiBooked at 68minsSubstituted forUsamiat 87'minutes
- 21G Sakai
- 16K N'Diaye
- 12SabalyBooked at 90mins
- 13A N'DiayeSubstituted forKouyatéat 65'minutes
- 17B NdiayeSubstituted forN'Doyeat 81'minutesBooked at 90mins
- 19NiangBooked at 59minsSubstituted forDioufat 86'minutes
- Gianluca Rocchi
- Shots on Target
Second Half ends, Japan 2, Senegal 2.
Attempt missed. Mame Biram Diouf (Senegal) left footed shot from the centre of the box is too high following a set piece situation.
Makoto Hasebe (Japan) is shown the yellow card for a bad foul.
Foul by Makoto Hasebe (Japan).
Sadio Mané (Senegal) wins a free kick in the defensive half.
Yuya Osako (Japan) wins a free kick in the defensive half.
Foul by Kalidou Koulibaly (Senegal).
Attempt blocked. Salif Sané (Senegal) header from outside the box is blocked. Assisted by Sadio Mané.
Foul by Takashi Usami (Japan).
Ismaila Sarr (Senegal) wins a free kick on the right wing.
Cheikh N'Doye (Senegal) is shown the yellow card for a bad foul.
Maya Yoshida (Japan) wins a free kick in the defensive half.
Foul by Cheikh N'Doye (Senegal).
Youssouf Sabaly (Senegal) is shown the yellow card for a bad foul.
Takashi Usami (Japan) wins a free kick in the attacking half.
Foul by Youssouf Sabaly (Senegal).
Keisuke Honda (Japan) wins a free kick in the attacking half.
Foul by Youssouf Sabaly (Senegal).
Substitution, Japan. Takashi Usami replaces Takashi Inui.