CHICAGO | Mathieu Perreault sent a loose puck past Chicago goalie Cristobal Huet at 4:48 of overtime to lift the Washington Capitals to a 3-2 preseason victory against the Blackhawks on Saturday night. Kyle Wilson and Chris Clark each had a goal and an assist for Washington, which is 2-0 in exhibition play. Wilson ripped in a low shot from the slot to tie the score at 2-2 with 2:47 left in the third period to set up overtime. Chicago's Patrick Sharp and Jack Skille scored to give the Bl...