Team falling behind rivals after just three laps completed on Thursday; Christian Horner and Adrian Newey leave Jerez to return to Milton Keynes HQ
Thursday 30 January 2014 17:12, UK
Red Bull's problems intensified in Jerez on Thursday when they called an early halt to their pre-season testing programme for the second day running and team boss Christian Horner, as well as Technical Director Adrian Newey, left the test to return to their Milton Keynes base.