Tiger Woods was accused of a "stupid" and misogynistic prank at the Genesis Invitational after handing Justin Thomas a tampon during his opening round.
Woods passed the sanitary product to his friend after outdriving Thomas from the ninth tee, with the 15-time major winner facing criticism on his return to the PGA Tour.
This is not only 47-year-old Woods' comeback event, having not played competitively since last year's Open Championship, but he is also the tournament host.
USA Today writer Christine Brennan wrote of the bizarre incident: "Woods' message to Thomas was obvious. It has been the go-to line of silly, often insecure boys for generations: You play like a girl. Really, Tiger?"
Brennan said Thursday's episode was "basic misogyny" and "a knee-slapper of a dig against female athletes".
Julie DiCaro, author of the book 'Sidelined: Sports, Culture, and Being a Woman in America', also condemned Woods.
She wrote on Twitter: "Ugh. All the guys think this is hilarious, but the joke is denigrating women. So played out and stupid."
Golf writer Shane Ryan, author of Ryder Cup book 'The Cup They Couldn't Lose', said Woods had reached a "new low" with his antics.
Ryan wrote: "Tiger Woods' humour has always been slightly lame, dumb-jock type of stuff, but becoming a prop comic? That's a new low."
Other views were available, and former professional golfer turned social media personality Paige Spiranac defended Woods, writing: "If anyone tries to cancel Tiger over this we riot. It's funny.
"I need a LIV vs PGA tour Ryder cup type event just so Tiger can give Phil [Mickelson] a tampon after out driving him."
Woods finished his first round with three consecutive birdies to score a two-under-par 70 . He dropped back to level par after bogeying two of his opening four holes on Friday, after starting his second round on the back nine, before making birdie at his fifth to repair some of the early damage.