Anderlecht are a point clear at the head of the Jupiler League table after Romelu Lukaku earned them a 2-1 win at Zulte-Waregem.
Marcin Wasilewski put them ahead three minutes before the break, but Remi Mareval levelled on the hour. The home side then had Ernest Webnje Nfor dismissed for a second bookable offence, and Lukaku took full advantage with the winner two minutes from time.
Genk are the nearest side to them after their 1-0 win at Germinal Beerschot - Marwin Ogunjimi scoring the only goal with 22 minutes remaining.
In the day's other game, Club Brugge got the better of Westerlo by the odd goal in seven. Dieter Dekelver gave Westerlo a flying ninth-minute start but, when he scored again after 28 minutes, it was an equaliser, as Ivan Perisic and Valdis Odjija Ofoe had put Club Brugge in front. Lens Annab quickly put the visitors back in front, only for Nabil Dirar (40) and Perisic (74) to win it for the home side.