FILE - In this Thursday, Nov. 1, 2012 file photo, Red Bull team principal Christian Horner, left, talks with Bernie Ecclestone, president and CEO of Formula One Management, at the Yas Marina racetrack in Abu Dhabi, United Arab Emirates. With Ecclestone's Formula One future in doubt amid bribery allegations, one of the most influential team bosses on Wednesday, Jan. 15, 2014 said the series' prosperity relies on him remaining in charge. Christian Horner, team principal of reigning constructors' champion Red Bull, believes Ecclestone is "the only guy" who can ensure F1 maintains its global reach as the premier motorsport series. (AP Photo/Luca Bruno, File)