The first lot of Euro 2016 last-16 matches should become a little clearer today when sides from Group C and D conclude their group stage campaigns.
Germany and Poland currently head Group C on four points, with Northern Ireland in third place on three points, while Ukraine are out of contention to qualify for the next round as they sit bottom of the group.
Spain are top of Group D having won both of their games so far, and they have secured qualification for the knock-out stages with Croatia in second place on four points. The Czech Republic are in third place on one point with Turkey currently sitting bottom having lost their opening two games. There is still plenty to play for in that group.
It is a day when intervention of one player could make the difference between the side making it through to the knock-out stages, getting a favourable draw or getting a more difficult tie and possibly going home early.
Here are three players to look out for:
The Real Madrid midfielder may get the nod for tonight's game against Spain - although that could largely depend on whether club-mate Luka Modric is fit enough to play. He has not been ruled out of the game just yet, but he was struggling in the last game against the Czech Republic which forced his early withdrawal.
Kovacic has been strongly linked with a move to Liverpool, although their local paper the Liverpool Echo has distanced the Reds from such a move. It has not stopped people talking about the talented midfielder as potential addition to the Reds side. Tonight, however, he has massive shoes to fill if he takes the place of Modric against a side that loves to keep hold of possession.
It would be a test of Kovacic's decision making on the ball, and maturity. A big test for both him and the rest of the Croatia side.
With his header in the win over Ukraine, McAuley wrote himself into international footballing folklore for Northern Ireland.
Set-pieces are probably going to be their biggest threat yet again, which probably makes him a good bet for first or anytime goalscorer. But being solid, first and foremost, is going to be task for the West Bromwich Albion defender and the rest of the Northern Ireland back line when they face the World Champions.
With Spain through to the knock-out stages of the tournament already, it could be an opportunity for Vincente Del Bosque to make one or two changes to freshen up the side and give a couple of players an opportunity to stake a claim for a starting place.
Bellerin has yet to feature at these championships, and the Arsenal man will be keen to impress. There has been some speculation that La Liga Champions Barcelona are interested in a move for him, according to the Daily Mail, so there could be one or two more interested spectators watching the defender than usual, should he be handed an opportunity.
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