The US PGA Championship - the golf season's second 'Major' - has been postponed and will be "rescheduled for later this summer".
The PGA of America has confirmed postponement of the event, scheduled for TPC Harding Park in San Francisco from May 11-17.
The announcement follows last week's decision to postpone next month's Masters.
"Throughout our evaluation process, we have been committed to following the guidance of public health authorities and given the coronavirus shelter-in-place order in effect in San Francisco, postponement is the best decision for all involved," PGA of America chief executive Seth Waugh said.
"This is a reflection of a thoughtful process. We are and have been working in concert with commissioner Jay Monahan, and our partners and friends at the PGA Tour to find an alternative date that works for all. We are all very hopeful for a great outcome.
"We are also in dialogue with Mayor Breed and her team at the City of San Francisco, and look forward to hopefully bringing the 2020 PGA Championship to TPC Harding Park at a date this summer, when it is once again safe and responsible to do so."
The news follows a previous announcement by Augusta National that it had postponed the Masters - the first major of the year - that had been scheduled for April 9-12.
Augusta National offered no hint as to when it planned to play the tournament, although October loomed as the most likely time, if the coronavirus has subsided.
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Auckland City, who lead with 37 points, have been declared champions and awarded a place in the OFC Champions League for next season, along with second-placed Team Wellington.
Auckland City were three competition points ahead of Team Wellington.