A match penalty is usually issued against a player for deliberately attempting to injure another player, such as stomping on him with their skate or a malicious hit. In addition to the offending player being immediately ejected (and usually subject to suspension), another player must serve a five-minute major penalty in the penalty box in addition to any other penalties imposed. The only exception is if a match penalty is against a goaltender, in which case the replacement goaltender can enter the ice immediately and a non-goaltender player serves the penalties. Match penalties may also be automatically flagged for review and supplementary discipline, depending on the league or association. A referee signals a match penalty by patting the flat part of his hand on the top of his head.