Defending PGA champion Jason Day is aiming for back-to-back wins at Baltusrol, something that only Tiger Woods has done in recent history.
The 29-year-old won the 2015 PGA Championship at Whistling Straits for the first major victory of his career.
Day's son, Dash, is only 4 years old, but has already become well-known in the golf circuit and may be following in his dad's footsteps. Click through the gallery to see, and learn more about Dash Day. (Getty)
TaylorMade and the PGA Tour Superstore released a Father's Day commercial that featured Dash and his dad, Jason Day in June.
Dash narrates the video, which shows Jason and Dash playing golf together, 'like most Sundays.'
"But since it's Father's Day, I let him win," he says.
Jason spoke about Dash learning to read his lines for the commercial.
Day told Golf.com:
"So (Dash) went down to, in Columbus, they went down to a studio. He had headphones on and Ellie was helping him out with his lines. I mean, the lines, he's only 3, so -- and people forget he's 3. He's a humongous toddler. He's very big. And you should see Lucy, she's even bigger. She's a fatty. It's fine. Like Ellie, I think she has protein shakes in those things. I don't know what she's doing. But for some reason, she's a very, very big baby. I don't know how other people have real tiny babies." (Getty)
Day poses with the winner's trophy on the 18th green alongside his son Dash and wife Ellie after his six-stroke victory at The Barclays at Plainfield Country Club. Jason met Ellie Harvey in 2005 at a Ohio restaurant, where she worked. Day frequented the restaurant with his caddie, Colin Swatton. However, they didn’t begin dating until 2007. (Getty)
Day and Ellie tied the knot in October 2009 and had their first son, Dash, in July 2012.
On November 11, 2015, Ellie gave birth to the couple's second child, Lucy.
Lucy made her first appearance on the golf course at the 2016 Par 3 Contest. The annual tradition during Masters week allows families to caddie for the players.
When Day is on Tour, their family travels together in an RV.
"Our family travels to most tournaments in our RV, and our 'home' is almost always parked on or near a golf course," Day told Golf Digest. "So the game is very present in his world. Dash will grab his driver and say, 'Hit balls, hit balls.' He really likes it, and watching his face light up when he connects with one brings me great joy." (Getty)
Dash has developed a passion for the game of golf, according to his father, who wrote about his son, in a Golf Digest article.
"I was kind of pushed into golf as a kid, so I vowed never to do that with my son," he told the publication. "My rule is, Dash has to ask me to go to the range."
In this photo, Day walks off the 18th green with his son Dash after winning the 2015 PGA Championship with a score of 20-under par at Whistling Straits on August 16, 2015 in Sheboygan, Wisconsin. (Getty)
If Dash continues to play golf, Jason says he plans to pass the coaching duties over to Colin Swatton, his own caddie.
"(Swatton) took me from a 12-year-old to where I am today," Jason told Golf Magazine. "If Dash ever decides to pursue golf seriously, I'll put Col in charge. I'd be too technical a teacher for a junior."
Swatton has been beside the champion golfer throughout the ups and downs of his career. The pair met when Day's mother sent him to the Koralbyn International School in Queensland, where Swatton was a coach, after the golfer's father died. Since then, Swatton has helped Day capture 10 PGA Tour wins, and earn over $33.5 million.
In a press conference following Day's victory at the 2015 PGA Championship--his first major win-- he talked about his relationship with Swatton.
"He's been there for me since I was 12 1/2 years old," Day said. "I mean, he's taken me from a kid that was getting in fights at home and getting drunk at 12 and not heading in the right direction, to a major champion. And there's not many coaches that can say that in many sports. So, he means the world to me. I love him to death." (Getty)
Arnold Palmer poses with Jason, Ellie and children Dash and Lucy following the final round of the 2016 Arnold Palmer Invitational. The Australian golfer has won ten PGA Tour events in his 10-year career. His most recent win came in March at the 2016 Arnold Palmer Invitational at Bay Hill. The victory marked his eighth PGA Tour event. He has earned $33.5 million while playing on the PGA Tour. In 2015, Day pocketed over $9.4 million in prize money, a career-best. And that's not including lucrative sponsorship and endorsement deals.
Day is ranked 19th on ESPN's All-Time Money Leaders in professional golf. (Getty)
Jason Day & Dash Day: The Photos You Need to See