Argentina coach Diego Maradona has warned his side to expect tougher tests after qualifying from World Cup Group B with a 100 percent record.

His side beat Greece 2-0 to finish top of the pool and now face Mexico in the knockout round on Sunday.

The 1986 World Cup winner said that the road gets more difficult as you always hear about Germany, Italy, Brazil playing poorly, but they are always in the second round, quarters, semifinals and the final.

Maradona made seven changes to the side that beat South Korea 4-1 and during the first half, Greece, who were dumped out of the competition as a result of the defeat, produced a defensive display that frustrated the new look Argentina side.

But in the second half, the South American side finally broke the deadlock winning 2-nil.

Looking at the games coming up tomorrow morning at 2am, England will take on Slovenia and USA will play Algeria.

At 6.30am, Ghana plays Germany and Australia face Serbia.