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ST ANDREWS, Scotland (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.
The 31-year-old Johnson gave an object lesson in big hitting as he bulldozed his way to a pacesetting seven-under-par 65 in becalmed early weather conditions at the iconic Fife links.
Sharing second place on 66 are fellow Americans Zach Johnson and Robert Streb, South African Retief Goosen, 1999 champion Paul Lawrie of Scotland, England's Danny Willett and Jason Day of Australia.