Bradley Dredge's lead at the Made in Denmark was trimmed to one stroke after the Welshman shot a 1-over 72 in the third round on Saturday.
One of the three players tied for second was Thomas Pieters of Belgium, who is seeking a victory to push his claims for a captain's pick for the Ryder Cup. Darren Clarke names his wild-card selections on Tuesday.
Dredge is on 12-under 201, with David Lipsky (67), Adrian Otaegui (68) and Pieters (69) a shot back. Joakim Lagergren is on 10 under.
Looking for a first European Tour victory in 10 years, Dredge had three birdies, two bogeys, and a double-bogey 6 at the 12th. It was just his second over-par round in 11 rounds at Himmerland Golf and Spa Resort.