SEATTLE, July 4 : The United States squad will look to harness their fans' growing belief in their World Cup chances when they take on Belgium for a place in the quarter-finals after the July 4 weekend, defender Sergino Dest said.The U.S. team will celebrate the country's 250th anniversary in time-honoured fashion by watching fireworks with family and friends, after a relaxed training session on Saturday morning.Weston McKennie and Folarin Balogun, who is suspended after a straight red in the win over Bosnia and Herzegovina, tossed a baseball around and coach Mauricio Pochettino wished reporters a happy holiday before the players got to work.The squad attended Friday night's Seattle Mariners baseball game and midfielder Cristian Roldan whipped up the crowd with a cry of "let's go win a Wor