Bayer Leverkusen and Borussia Dortmund are level at 0-0 following a low-key first 45 minutes of their Bundesliga encounter.
Dortmund began the game at the foot of the table after Freiburg's 4-1 win over Eintracht Frankfurt, and there has been little to suggest that Jurgen Klopp's side will arrest their slump following the winter break.
Roberto Hilbert sent an effort towards goal inside the opening two minutes for the hosts, but Roman Weidenfeller held on comfortably.
Marcel Schmelzer then tried his luck from range, but the left-back's shot was straight at Leverkusen stopper Bernd Leno.
The best chance of the half fell to Gonzalo Castro six minutes before the break, but the midfielder's effort was blocked at close range.