Snippet: The NBA source, who spoke on the condition of anonymity because he is prohibited by the league from publicly addressing controversial game issues, said the referees had advised both teams that, as a result of the bunkhouse-rough tactics in the playoff series, the game would be called vise-tight. Billups confirmed the warning. "Mauer told me it would be unbelievable. About six minutes in, I said to him, 'Kenny, you're right. It is unbelievable.' "