India, July 9 -- After beating Colombia on penalties, Switzerland now face their biggest challenge of the World Cup when they take on defending champions Argentina in the quarterfinals. Argentina will start as favourites, with Lionel Messi once again leading the charge. The 39-year-old has carried his side through the tournament, scoring eight goals to lead the Golden Boot race and continuing to deliver when it matters most. Even so, Argentina have shown they are far from invincible. They needed extra time to get past Cape Verde before producing a remarkable comeback from two goals down against Egypt. Those matches exposed a few cracks, and Switzerland will believe it can take advantage. While the Swiss understand the challenge of facing ...