Who is Dustin Johnson’s caddy’s fiancee Sam Maddox and how long has she been with Austin Johnson?

DUSTIN JOHNSON'S caddy Austin Johnson is engaged to stunning Sam Maddox.

Paulina Gretzky, who is engaged to Dustin, usually hogs the headlines when her man is winning.

 Sam Maddox poses with fiance Austin Johnson, caddy of Dustin Johnson

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Sam Maddox poses with fiance Austin Johnson, caddy of Dustin Johnson

She was famously seen wearing a short white dress when the big-hitting American claimed his first Major at the 2016 US Open.

But Maddox is catching just as much attention when she follows the brothers outside the ropes.

Austin and Sam have been together for almost five years.

Resting Beach Face ?

A post shared by Samantha Maddox (@sammaddox) on

A post shared by Samantha Maddox (@sammaddox) on

?VEGAS?

A post shared by Samantha Maddox (@sammaddox) on

✖️✖️

A post shared by Samantha Maddox (@sammaddox) on

My instagram was hacked ? Of course my favorite photo was deleted among others! I enjoyed reading all the comments and knowing how much love Austin and I have surrounding us! #JoiningJohnson

A post shared by Samantha Maddox (@sammaddox) on

Breakfast of Champions! ? @austin_johnson12

A post shared by Samantha Maddox (@sammaddox) on

Funnily enough they got together at roughly the same time Dustin hired his younger brother as his caddy.

The bagman got down on one knee when the pair were relaxing during the off-season at the Bellagio  hotel in Las Vegas at the end of last year.

She graduated from the College of Charleston in South Carolina, US, back in 2015.

My Valentine ❤️ @austin_johnson12

A post shared by Samantha Maddox (@sammaddox) on

Watch out world.. He has a parking spot! ? official babe @austin_johnson12 #proud #love

A post shared by Samantha Maddox (@sammaddox) on

Kentucky .. Home of beautiful horses and fast women ?? @sammaddox

A post shared by Austin Johnson (@austin_johnson12) on

Happy anniversary @sammaddox #3yrs

A post shared by Austin Johnson (@austin_johnson12) on

Happy bday to this very special and beautiful girl @sammaddox .. Good luck at your match today love and miss you so much!!!

A post shared by Austin Johnson (@austin_johnson12) on

✈️Flying into the rain wasn't fun but I'm soooooo excited to be home in Kentucky!!!!?

A post shared by Samantha Maddox (@sammaddox) on

Maddox, who is from Lexington, Kentucky, was born on April 19, 1993.

She was a first team All-CAA tennis player for the university and holds a degree in accounting.

Sam has started playing golf since getting with Austin and posts videos of her playing to her 20,000 Instagram followers.

DUSTIN JOHNSON'S caddy Austin Johnson is engaged to stunning Sam Maddox.