The world. No. 1 withdrew from Rio 2016 Tuesday after citing fears over contracting the Zika virus.
His move comes after four-time major winner Rory McIlroy pulled out this month for similar reasons, while several other of the sport's big names have also said they won't travel to South America.
While the symptoms of the virus -- which include a rash, headaches and joint pain -- aren't severe, Zika has been linked to microcephaly in newborn babies and some cases of the muscle-weakening disease Guillain-Barré syndrome in adults.
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CNN host and former UK tabloid editor Piers Morgan was questioned in December in connection with a UK police inquiry into phone hacking, he said Friday.
Morgan said he was interviewed while in Britain by officers involved in the investigation into claims that journalists illegally hacked people's voice mail to get stories, known as Operation Weeting.
"In early November I was asked to attend an interview by officers from Operation Weeting when I was next in the UK," he said in a prepared statement. "This was further to a full witness statement I had already freely provided. …