ATLANTA, July 6 : Argentina manager Lionel Scaloni believes this World Cup has been a great leveller where traditional powerhouses are struggling to assert their dominance. Defending champions Argentina go into their World Cup last-16 tie with Egypt on Tuesday on the back of a major scare against Cape Verde. Scaloni's side won all three group games and were rarely tested, but Cape Verde took them to extra time, and Argentina's eventual 3-2 win was greeted with relief more than celebration.France were runners-up four years ago, and they needed a penalty to overcome Paraguay in the round of 16, Spain got past Portugal thanks to an added-time goal, while Brazil and Germany are already out. "I think this World Cup is very tricky for everyone, it seems there is no clear favourite," Scaloni told