NFL wants $16.6 million for M.I.A.’s middle finger

Pro football knows how to play hardball. The NFL has opted to apply the screws to M.I.A., who made a guest appearance during the halftime show of Super Bowl XLVI in Indianapolis — and who fired off an unscripted middle finger to someone/anyone/everyone/no one. In 2012, the league filed an arbitration claim against M.I.A., seeking…