The Travelers Championship announced on its Twitter account Monday afternoon that Jason Day has withdrawn from this week’s tournament.

Day tied for ninth place at the U.S. Open Sunday despite battling vertigo for most of the weekend. He collapsed on his final hole on Friday and almost withdrew on Saturday. He ended up tied for the lead heading into the final round.

Day moved up two spots to No. 8 in the latest world rankings released Monday. He tied for 18th place in last year’s Travelers Championship.