Australian Jason Day and Tiger Woods have long had a close relationship. But with former world No.1 Day struggling with form over the past three years, he has leaned on 15-time Major winner Woods’ advice more than ever.

Day, the 2015 PGA Championship winner who has dropped to world No.150, was showing a fellow pro texts from Woods recently, which were super golf-nerdy discussions about technique. Fascinating viewing for any golf fan: