Brooks Koepka and Webb Simpson, two of the top five golfers in the world, were among five players who withdrew from the Travelers Championship, four of them out of a chain-reaction abundance of caution as the coronavirus put the PGA Tour on notice.
"The snowball is getting a little bit bigger," Graeme McDowell said after withdrawing because his longtime caddie, Ken Comboy, tested positive for the virus.
The tour released results that showed three positive tests at the TPC River Highlands in Connecticut — Cameron Champ and the caddies for Koepka (Ricky Elliott) and McDowell. Koepka's brother, Chase Koepka, also withdrew because he had been in contact with Elliott. Chase Koepka had made the field through the Monday qualifier.
Simpson, who won the RBC Heritage last week with a record score that moved him to No. 5 in the world, withdrew when he learned a family member had tested positive.
As it enters the third week in its return from the pandemic that shut down golf for three months, the tour has administered 2,757 tests at PGA Tour and Korn Ferry Tour events in five states, with seven positive results. Nick Watney was the first player to test positive, last week at the RBC Heritage in South Carolina.
"It's a low number on a percentage basis, but every number hurts," PGA Tour Commissioner Jay Monahan said. "I think we all need to remind ourselves that we're all learning to live with this virus.
"It's pretty clear that this virus isn't going anywhere."
Monahan said the tour would continue, and he said there was no set number of positive tests that would lead to golf shutting down again.