Ernie will carry the XXIO bag and play SRI's family of golf products. “I'm proud to be on board as XXIO's new Global Ambassador,” said Ernie.

Els has yet to finalize his bag, but we hear he'll be gaming Srixon's current Z series irons – likely a Z 765/Z 965 mix – Cleveland RTX-3 wedges, the Srixon Z Star XV ball and an as yet determined driver from the Srixon-Cleveland-XXIO Stable.

Ernie Els WITB 2023 (April)

• Driver: XXIO 12 (8.5 degrees) Shaft: Project X HZRDUS Smoke Black RDX 60 TX.
• 3-wood: XXIO 12 (15 degrees) Shaft: Project X Even Flow Prototype.
• Irons: Srixon U85 (2), Srixon ZX7. Shafts: KBS $-Taper 130.
• Putter: Odyssey. Grip: SuperStroke Tour 3.0.

Watson, on the other hand, used Callaway's Rogue ST Triple Diamond LS model, the low-spin version of the Rogue ST line whose design is driven by artificial intelligence.

Fujikura Ventus Blue TR 6 X shaft What we found was a new shaft in his driver. McIlroy now has a Fujikura Ventus Blue TR 6 X shaft in his Stealth 2 driver. The change is intended to help him get more spin with his shortened 44-inch driver construction, he said.

Tiger has a Mitsubishi Diamana D+ 60 TX shaft fitted to his driver.

Stealth 2 Plus He switched to TaylorMade's latest Stealth 2 Plus, the second version of the company's drivers that feature a carbon composite face.

TaylorMade Stealth Plus driver Collin Morikawa is using the TaylorMade Stealth Plus driver. Collin Morikawa can play in the US PGA Championship for life after his 2020 win. Collin Morikawa lifts the WGC-Workday Championship trophy. Collin Morikawa uses the 2021 TaylorMade TP5 golf ball.

Fujikura Speeder 661 X prototype shaft A Fujikura Speeder 661 X prototype shaft is the perfect foil for Dustin Johnson's immense speed and power with the driver.

Fujikura Ventus Blue TR 6 X shaft What we found was a new shaft in his driver. McIlroy now has a Fujikura Ventus Blue TR 6 X shaft in his Stealth 2 driver. The change is intended to help him get more spin with his shortened 44-inch driver construction, he said.

44 inches Working with different profiles of Fujikura's Ventus TR shaft, McIlroy found the same Blue (6X) at a shorter length (44 inches versus 44.5 inches) kept the club from “falling” behind him during the transition.

TaylorMade Stealth Plus driver Collin Morikawa is using the TaylorMade Stealth Plus driver. Collin Morikawa can play in the US PGA Championship for life after his 2020 win.