There has been controversy on day one at the Masters, with Brooks Koepka’s caddie causing a stir after an incident on the 15th hole many fans believe should have resulted in a two-shot penalty.

Former golf pro Mark Allen told 3AW Afternoons it would “eat away” at Koepka over the coming days.

Press PLAY below to hear Marko explain how!

(Photo by Andrew Redington/Getty Images)