United States men's national team coach Mauricio Pochettino will announce his full 26-player World Cup roster on May 26, and he will be forced to make some difficult decisions.USA and Seattle Sounders midfielder Cristian Roldan, who was selected for the 2022 World Cup in Qatar, joined First Things First to discuss his feelings ahead of Pochettino's final decision next month."There’s a lot of pressure going into it," Roldan said on Wednesday's ed…