The European Tour is back at Himmerland Spa & Golf Resort for the Made in Denmark event.
Thomas Pieters is hoping to defend his title after a difficult first half of 2017.
While Thomas Bjorn is making his 500th appearance on the tour and is back in his homeland.
European Tour Made in Denmark live leaderboard
Pieters, currently 11th in the Race to Dubai, is hoping to make a late charge.
“Golf has been all right this year, I haven’t won, that is my main focus to win a golf tournament and I haven’t done that,” he said.
“I’ve gotten into contention a bunch of times and not finished it off. I’m not happy this year, not yet, it’s not over yet.
“I have good memories and the course looks in very good shape, looks very similar to last year’s set up. I’ve played well, I’m swinging it well, I just need to putt well this week and there’s plenty of birdies out there. I don’t know if I’ve got a 62 in me like last year.
“At Firestone you don’t expect anyone to shoot 61 in the last round but every week it’s something like that. I should have played better, yes, so maybe just a lack of concentration for nine holes in four days. It doesn’t seem like a lot but in the end it could cost me two or three shots and victory. I’ve gotten close.
“The last three are very easy birdies if you play them right but it could be an easy bogey as well so I think they’re key. As you saw last year, it can change very easily on 18. I was tied, sometimes it goes your way, sometimes it doesn’t.”