Ian Poulter posted a video on his Instagram appearing to be practising his putting, using the claw grip and a putting aid - and it certainly caused a stir on social media today.
However, on the famous day where jokes are played around the world, Poulter was having his own fun by using a different grip with a different putter and deliberately anchoring the putter which is now illegal.
Although the video came across as normal, many were quick to notice that the European Ryder Cup star wasn't being serious. One person who wasn't caught out was Bryson DeChambeau, who was quick to spot that Poulter was joking.
Poulter is known for his clutch putting and passionate antics at crucial moments, but it is safe to say that we won't be seeing this drill from the World No. 62 in the future.
WATCH POULTER'S VIDEO BELOW
"Uh oh is this one of those April... you know....," DeChambeau commented on the Englishman's post.
"You bad man," someone replied to DeChambeau.
However, not all of Poulter's fans were as sharp as DeChambeau and some believed that Poulter was trying a new putting grip and that he wasn't aware of the rules about anchoring the putter.
"Love the claw! Works wonders! Good luck!" one fan said.
"Interesting, but why tinker with what ain’t broke! You’re a great putter!" one fan commented.
"Ian could you please explain how this is not anchoring? I know a lot of guys use these now and it’s legal but surely the club is anchored to the forearm no?" another fan said.
Poulter's fellow Englishman and tour player Tyrell Hatton was also keen to join in the fun.
"Just need a greens book now," he commented.