McDonald went into full 'Shooter' mode at the WM Phoenix Open when he played his legendary jacket heist from Happy Gilmore like it ... they just get better at running. As soon as the videos ...

Rory McIlroy got a message from Happy Gilmore 2 co-star Adam Sandler after winning The Masters for the first time.

After McIlroy's 10-year battle to get a Green Jacket ended on Sunday ... as Adam Sandler channeled his inner Happy Gilmore to show love to McIlroy. "Way to gooooo grand slammmer!!!

Justin Thomas and Xander Schauffele apparently have standout roles while Rory McIlroy, Keegan Bradley, Rickie Fowler and Collin Morikawa have cameos.