Jason Day will undergo a health evaluation Saturday morning and then make a decision as to whether or not he will play his third round at the U.S. Open, per Golf Channel's Todd Lewis.
Just three shots back of the lead, Day, 2 under, is scheduled tee off at 1:55 p.m. local time, alongside Kevin Kisner.
Day on Friday collapsed on the ninth hole, his final hole of the round, while walking from tee to green and was later diagnosed with Benign Positional Vertigo.
