Graham Potter accepted his Chelsea side "took a step back" after they were beaten at home by Southampton but insisted that his management is not the problem.
Chelsea were beaten at Stamford Bridge by the Premier League's bottom side Southampton on Saturday.
Former Chelsea midfielder Mikel John Obi claimed Eden Hazard was the laziest footballer he has ever played with.
Jude Bellingham feels that Borussia Dortmund have what it takes to beat Chelsea in the Champions League return leg.
Chelsea coach Graham Potter feels they are improving despite losing against Dortmund in the Champions League last-16 clash.
Chelsea suffered a 1-0 Champions League first-leg defeat at Borussia Dortmund as Karim Adeyemi's superb second-half strike lifted the Bundesliga side to victory at Signal Iduna Park.