By Paul Higham
Last Updated: 01/01/70 1:00am
Schalke went level with leaders Bayern Munich after beating Borussia Dortmund.Schalke moved level on points with Bundesliga leaders Bayern Munich after winning the Ruhr Valley derby with Borussia Dortmund.
Schalke made the short trip to the Westfalen Stadion to face their near rivals knowing that they could keep in touch with Bayern with a win.
Brazilian marksman Ailton was the hero for the visitors as his early goal after 17 minutes proved enough to settle the derby clash.
Dortmund were unable to muster an equaliser and Bert van Marwijk's side stay too near to the foot of the table for their liking.
Ralf Rangnick's Schalke now sit in second place and maintain the pressure on Bayern, only being behind the German giants on goal difference.
Kaiserslautern moved closer to fellow mid-table side Mainz thanks to a 2-0 win at home.
Mathias Abel did the visitors no favours when he put through his own net to give Kaiserslautern the lead after 20 minutes.
Kamil Kosowski sealed the three points for The Red Devils with his strike four minutes before the hour mark.