Dustin Johnson said on Wednesday that his US Open win in June has given him the confidence to know that he "can get it done" at the 145th Open Championship at Royal Troon this week.

SOUNDBITE (English) Dustin Johnson, world no. 2

(On how it feels to go into a major having won the last one)

"It feels great. I felt like I've been playing well all year, so for it to finally pay off and get my first major at the U.S. Open and go out and win again at the WGC was obviously big, and I've got a lot of confidence in my game. I feel like I've been playing really well."

SOUNDBITE (English) Dustin Johnson, world no. 2

(On how different he feels with his game now he has won a major)

"The mindset's just different. I'm not trying to win the first one. I already have. So on Sunday if I'm in contention, just knowing that I can get it done is a big confidence booster coming down the stretch."

SOUNDBITE (English) Dustin Johnson, world no. 2

(On if he would play in the Olympics this year if they were in Tokyo instead of Rio de Janeiro)

"Yeah. I mean, I wanted to go play, but just for me at the end of the day, me and Paulina, we're going to have more kids. I know the risk is very low, but if something were to happen, I'd never forgive myself for that."