Nicolai Hojgaard shot an 8-under 64 on Saturday to take a three-stroke lead into the final round of the Ras al Khaimah Championship.
The 20-year-old, seeking his second DP World Tour title, birdied five of his last six for a 54-hole total of 20-under 196, with David Law his nearest rival at 17 under.
Finland's Tapio Pulkkanen also carded a 64 and was four shots off the lead at Al Hamra Golf Club. A further stroke back was South Africa's Oliver Bekker at 15 under.
Hojgaard won the Italian Open in September, a week after his identical twin, Rasmus, claimed his third title. It marked the first time in tour history that brothers have won back-to-back tournaments.
Nicolai is ranked No. 100 in the world and Rasmus is two places higher in the rankings. Rasmus was tied for 11th after three rounds at Ras al Khaimah, nine shots behind his brother.