EXCLUSIVE CONTENT Get ESPN+ USMNT prospects blog: Five players primed to break out in 2015Columbus Crew midfielder Wil Trapp impressed at the USMNT's January camp. AP Photo/Steven SenneDoug McIntyreJan 27, 2015, 11:30 AM ETCloseDoug McIntyre is a staff writer for ESPN The Magazine. He has covered American and international soccer since 2002.Follow on XEmailWhen the U.S. team kicks off its 2015 slate Wednesday in Rancagua, Chile, against the host nation, several promising youngsters will be hoping to earn their first international cap.