Big Mouth

Tigers closer Jose Valverde said yesterday, after the win over the Yankees to tie the series at a game apiece, that the series was over and wasn't coming back to New York.
Is it a smart thing to guarantee a series victory? I don't think so but no one ever said Valverde was a great thinker.
Why even say anything like that? I'm sure he feels his team will win and he should feel that way. But if I were one of his teammates I'd be annoyed with his comments.
We'll see.