The World Cup round of 16 concludes on Tuesday with two South American teams favored to advance. Argentina, one of the featured teams of the tournament, is back in action after its dramatic win against Cape Verde, while Colombia and Switzerland meet in one of the closest matches of the round on paper.Here’s a look at both matches and the odds that go with them, plus some picks from our betting staff.Argentina-EgyptTime: Noon ETTV: Fox (English), Telemundo (Spanish)Venue: Mercedes-Benz Stadium, AtlantaArgentina is coming off arguably the game of the tournament. Will La Albiceleste be drained from that experience or refocused and ready for Egypt?While Egypt doesn’t have the Cinderella story of Cape Verde, the Pharaohs are by far the biggest long shot of the remaining field to win the World Cup (250-to-1). Part of that is because Egypt is facing Argentina as a huge underdog in this match, but it’s also because Egypt is the lowest-ranked team left.Argentina is a favorite to win almost every time it plays and has been a massive favorite in every match of this World Cup so far. Once again, Lionel Messi’s team takes the field with expectations of winning, and arguably winning with style.The 3-2 extra-time win against Cape Verde featured excitement, but not ease for Argentina. Can Egypt push the reigning world champions in a similar way?Argentina is -700 (1-to-7) to advance from this match and -270 to win in regulation. Egypt isn’t as big of an underdog as Cape Verde was, but it would still be a massive shock if Argentina doesn’t take care of business.Messi has been a massive star at this World Cup with seven goals, but doesn’t even lead the Golden Boot race by himself. France’s Kylian Mbappé and Norway’s Erling Haaland matched Messi’s seven with crucial goals earlier in this round. Now, it’s Messi’s turn to try to put some distance between him and those stars again.