Borussia Dortmund have relieved head coach Lucien Favre of his duties in the wake of Matchday 11's 5-1 home loss to promoted VfB Stuttgart.
Despite qualifying for the UEFA Champions League knockout rounds as Group F winners, Dortmund are five points behind Bundesliga leaders Bayern Munich after 11 rounds of fixtures, following a run of one win in five.
Assistant coach Edin Terzic has been appointed on an interim basis until the end of the current campaign.
"It was a tough decision for us to take," admitted Dortmund sporting director Michael Zorc of Favre's dismissal. "At the same time, we felt we were in danger of not meeting our goals for the season after this difficult phase. That's why we had to act."
Favre, 63, leaves the Dortmund almost halfway into his third season at the helm. He oversaw 110 matches in all competitions, with Dortmund finishing as Bundesliga runners-up in 2018/19 and 2019/20, whilst winning the 2019 Supercup.
"We're all extremely grateful for Lucien Favre's fine work over the last two-and-a-half years, including two runners-up finishes," added BVB CEO Hans-Joachim Watzke. "He's an impeccable professional and coach."
Dortmund face away games in the Bundesliga against Werder Bremen (15 December) and Union Berlin (18 Dec), before travelling to second-tier Eintracht Braunschweig in the DFB Cup second round, in their final competitive fixture of the calendar year (22 Dec).
The club's last major trophy was the 2016/17 DFB Cup, under Thomas Tuchel. They haven't won the Bundesliga since back-to-back title triumphs on Klopp's watch in 2010/11 and 2011/12.