请看外电报道：Limping on an injured right foot, Federer managed tiebreaker wins from both of the first two sets, but obviously ran out of energy before losing it on decider, 6-7 (4), 6-7(11), 6-2, 6-1, 7-6 (3) in four hours and 34 minutes.

　　Decide是我们都非常熟悉的词，意思是“决定”，与之相关的名词decider除了可表示“决定者”之外，在体育比赛中，decider还可以用来指“（打成平局后的）决胜局”。

　　例如：It is a league decider and we are at home so we want to have the final say.（这是联赛的决胜局，我们又是主场，因此我们希望一举搞定。）