Sunday sees a clash of two World Cup titans when Spain take on Germany, in a match that could send the Germans home from the tournament early should they suffer another defeat.
Two other European teams are also in action: Belgium take on Morocco, before Croatia play Canada.France became the first team to qualify for the last 16 of the tournament following their 2-1 win over Denmark, thanks to two goals by Kylian Mbappe.Argentina survived a make-or-break test following their shock opening defeat against Saudi Arabia, second half goals from Leo Messi and Enzo Fernandez securing a 2-0 victory against Mexico.Robert Lewandowski scored his first World Cup goal in a 2-0 victory over Saudi Arabia that puts Poland on top of Group C.Australia are back within a shouting chance of qualification from Group D, after Mitchell Duke's header gave the Socceroos a 1-0 victory over Tunisia.Some high profile teams have been humbled: Saudi Arabia beat Argentina 1-2, while Japan beat Germany 1-2.Records have fallen: Portuguese star Cristiano Ronaldo made history as the first male player to score at five World Cups. Pre-match drama: German players held their hands over their mouths in a silent protest before kick-off of their first game, while Iranian players refused to sing their national anthem in the first game -- but were back to singing in the second game after a well-known player who didn't make the squad was arrested in Tehran, sending a clear signal to the players in Doha.Off-pitch controversy: European countries have lodged complaints against FIFA's ban on team captains wearing anti-discrimination "One Love" armbands at the games.