Surprise, surprise.The underdog Philadelphia Seventy-Sixers shocked the L.A. Lakers 107-101 in overtime last night in Game One of the NBA Finals at the Staples Center.Allen Iverson drained a three-pointer to give the Sixers a two-point lead in overtime after L.A. had built a five-point bulge. For the game, Iverson had 48 points.Iverson was on fire throughout much of the first three quarters, scoring 31 in the first half. Shaquille O’Neal was huge in the middle for L.A., scoring 44 points and grabbing 20 boards.An unexpected bright spot for Phil Jackson’s Lakers was Raytown High and University of Nebraska product and Mexico, Mo., native Tyronn Lue. Lue was the sparkplug 15-point comeback in the third quarter. Lue played 22 minutes, scoring five points and dishing out three assists. But Lue made his mark on the defensive end, holding Iverson to just three points in the fourth quarter.Game Two is Friday in L.A.