In the 2 weeks which pro golfers call their "off season", Justin Thomas poked a bit of fun at the short break, posting a selfie to Instagram claiming to have made some massive gains in the guns department during that time!

With the 2 week off season over, glad to show the results from really hitting it hard in the gym. Should be driving all holes under 450 yards now 😂😂 #gainz #swollmonkey

A photo posted by Justin Thomas (@justinthomas34) on Oct 9, 2016 at 8:53am PDT

The PGA Tour must of been stalking the golfers social media accounts over their break, as Thomas was drug tested prior to the start of the Safeway Open a few days later!

Of course after my photoshop job looking like I have 💪🏽 last week, it's only right I got drug tested today 😂😂

— Justin Thomas (@JustinThomas34) October 12, 2016

Kudos to the PGA Tour for carrying out testing and keeping the sport clean, but they might need to use a little more stealth than IG posts to catch anyone juicing!