silver goal

noun

soccer (in certain competitions) a goal scored in a full half of extra time that is played if a match is drawn. This goal counts as the winner if it is the only goal scored in the full half or full period of extra time

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012