As we saw at the Bank of Utah Championship, Jason Day isn't afraid to experiment with new golf equipment but, at this week's Grant Thornton Invitational, it was an old driver that caught the eye.
Being an equipment-free agent, the Australian is able to use any manufacturer or model of club he wants, but it still came as a slight surprise to see Day with a TaylorMade M5 as he played the first round of the mixed-team event.
