Borussia Dortmund slipped back to the bottom of the Bundesliga on Saturday despite picking up a point in their goalless draw at fellow Champions League side Bayer Leverkusen.

Before kick-off, Freiburg's 4-1 comeback win at home to Eintracht Frankfurt had lifted Christian Streich's side up to 13th to send Dortmund bottom for the first time since November.

But Jurgen Klopp's Dortmund failed to break the hosts' defence at Leverkusen's BayArena as Borussia's Italy striker Ciro Immobile squandered a string of second-half chances.

At the other end, Borussia's Germany defender Mats Hummels headed Gonzalo Castro's first-half shot off the line in the hosts' best chance after Castro had earlier shot over the bar.

With ten defeats in 18 games, Klopp's side are enduring their worst start to a league season in 30 years.

They are looking to avoid dropping out of the Bundesliga for the first time since 1976, while Bayer are fifth.