In an attempt to bunt his ball back out onto the fairway, Thomas opted to punch an 8-iron that had disastrous results for his club.
With the galleries watching on nearby, the young American took a solid swing at his ball and made equally solid contact with the large tree after impact.
While Thomas managed to work his ball back onto the fairway, his iron wasn't so lucky, loudly snapping in half on impact with the tree.
A sheepish Thomas bent down to pick up the remains of what once was his 8-iron as the commentators remarked that "the follow through was impeded and the club took the brunt of it".
It was just another blow for the youngster from Kentucky, a birdie two holes later on 17 not enough to lift Thomas inside the projected cut line as he signed for another round of 1-over 72 to be in danger of missing the weekend's action.
Thomas entered this week's tournament in Arizona sitting sixth on the season-long FedEx Cup money list and, if he harbours hopes of remaining at the top of those rankings, he might need to source himself a new 8-iron.