Five practices were supposed to prepare the Americans for this, and they knew at the second intermission Slovenia was going to come out punching. The preparation and the knowledge were not enough to fend off the fatigue as the United States blew a two-goal lead and lost a 3-2 stunner in overtime Wednesday night in the Olympic opener for both teams. Slovenia captain Jan Mursak scored the tying goal with 1:37 left in regulation and the winner 38 seconds into overtime.