Dalic is expected to recall all the big-name players who were rested for Tuesday's 2-1 win against Iceland. Croatia, having edged out Denmark and seen Spain removed from their path, will hope that omen can push them on to success in Russian Federation.
Three minutes of added time, Denmark have plenty forward trying to pinch a victor.
Croatia has been one of the most impressive teams through the World Cup Group stage.
Kwese's Andrew Kabuura and Daniel Amokachi point to Spain's record against host nations in World Cups following their shock defeat againt Russian Federation. The cross comes in from Strinic, Mandzukic goes down in the challenge from Knudsen, VAR confirms no penalty.
116' - What a stop. Zanka is shown a yellow card. Mario Mandzukic will lead Croatia's attack.
That's the end of regulation time, we'll be going to extra time for the second time today.
105' - Substitution: Denmark's Pione Sisto replaces Martin Braithwaite.
The second of the three all-European ties in the Round of 16 at Russian Federation 2018 is happening for the first time.
98' - Substitution: Michael Krohn-Dehli replaces Thomas Delaney.
Forwards: Mario Mandzukic (Juventus/ITA), Ivan Perisic (Inter Milan/ITA), Nikola Kalinic (AC Milan/ITA), Andrej Kramaric (Hoffenheim/GER), Marko Pjaca (Schalke/GER), Ante Rebic (Eintracht/GER).
91' - First period of extra time begins.
Every time the ball went out on the touchline in the opposing half, up he came with his bionic appendage. We're 15 minutes away from a possible shootout.
82' - Croatia's Mateo Kovacic takes a hard fall and immediately grabs his right shoulder. He comes off the field for the time being.
He also said he has studied the way Croatian players shoot penalties when playing with their teams, in case the match goes to a penalty shootout.
Croatia's Marcelo Brozovic during training.
66' - Substitution: Denmark's Nicolai Jørgensen replaces Andreas Cornelius.
12 minute: Corner for Croatia. Lasse Schone in for Andreas Christensen.
45' (+2) - First half ends. The game has limped on after such a rapid start, but neither of these sides have done enough to hit the front just yet.
39 minute: Free-kick to Croatia on the left-flank.
Dejan Lovren nearly got the second goal for the Croats seven minutes before the break with a glancing header that sailed just wide of the upright.
Given their high profiles, plenty of focus has fallen on how they will get on in Nizhny Novgorod, with their rivalry widely portrayed as being crucial to how Sunday's game will unfold. In goal is Leicester City star Kasper Schmeichel. That was quick, too. He's the most important player for Denmark. Mathias Jorgensen sneaks one through after some juggling in the box.
Fans will be waiting to see who comes out on top between Modric, and Christian Eriksen, Denmark's standout player.
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