WRAPUP 1-Golf-Johnson turns tables on Spieth while Woods slumps 16.07.2015 23:52 Reuters ST ANDREWS, Scotland, July 16 (Reuters) - Dustin Johnson sounded an ominous warning to grand slam-chasing Jordan Spieth by outmuscling the youngster to power his way to the top of the leaderboard in the British Open first round on Thursday.
