Cavallini scores, short-handed Whitecaps snatch dramatic 2-1 win over Dynamo

VANCOUVER — Lucas Cavallini scored in injury time, giving the short-handed Vancouver Whitecaps a much-needed 2-1 victory over the Houston Dynamo on Friday.The Canadian striker fired a left-footed shot from inside the penalty area in the second minute of added time to secure the win for the ‘Caps (8-10-6).Simon Becher — making his Major League Soccer debut — put away Vancouver’s first goal of the night in the 88th minute.Fafa Picault opened the scoring for Houston (7