By Brian Straus A World Cup loss in the round of 16 is nothing new for the U.S. men’s national team, but the ceiling for this group seems different. Raising it comes with its own set of challenges. AL RAYYAN, Qatar — Throw out the disastrous 2018 cycle—it was a historic outlier blighted by mismanagement—and it’s easy to simply look at the stats and fear the U.S. men have come up against their soccer ceiling. In three straight World Cups, the Americans escaped the group stage with a single win over an African or Asian opponent only to fall in the round of 16. All three knockout-round matches we…