Changes to Augusta National's carefully manicured course have been on the minds of the world's elite golfers on the eve of the first major of the year, the Masters.
The American Steve Stricker says there are a lot of little subtleties and nuances to figure out.
The world number two says he was very uncomfortable in his first few years at Augusta, and they've had to do plenty of homework again this week.
He says it's like cram,ming for a test because no matter where a chip or a put is taken the odds it won't be right and just moving a metre or two can change the whole dynamics of the greenchangign
