No doubting the star attraction today with Rory McIlroy, Scottie Scheffler and Xander Schauffele off together on the 10th at 1.22pm.Selected groups:12pm: Luke Donald (Eng), Padraig Harrington (Ire), Martin Kaymer (Ger).6:03pm: Tyrrell Hatton (Eng), Adam Scott (Aus), Will Zalatoris (US).6:14pm:…