Maurizio Sarri was unimpressed with Chelsea's ponderous performance against BATE despite a 1-0 win securing his team's passage to the Europa League knockout rounds.
Olivier Giroud's first goal in 794 minutes of club football was one of few positives from a lethargic display that could well have cost the Premier League side.
BATE were denied by the woodwork three times, including once in stoppage time as the hosts went within inches of rescuing a result in frosty conditions.
Chelsea ultimately clung on to move within a point of confirming their status as Group L winners, although their coach was left concerned.
"We didn't play very well. I didn't like the first half because we moved the ball only slowly," Sarri told reporters.
"It was very difficult to be dangerous, but we were better in the first 25 minutes of the second half. We didn't manage the last 15 minutes well.
"The best thing is the result. It wasn't very easy to play a good game here, with the conditions."
Giroud's well-judged header from Emerson Palmieri's cross in the 52nd minute did provide Sarri with the rarity of two strikers in scoring form following Alvaro Morata's brace in the weekend win over Crystal Palace.
The goal opened Giroud's account under the Italian and was his first for Chelsea since May.
"I am pleased for him. He is very important for us," the Blues boss said.
"I know very well a striker wants to score. For his confidence it is very important."
France striker Giroud insisted he lost no belief in his ability during the drought.
"I maybe lacked a bit of efficiency and a bit of luck sometimes, but you always need to keep working hard in training and keep the faith," the 32-year-old told BT Sport. "That's what I did tonight."
20 de enero 2019
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|Guardiola demands improvement after Man City win|
|Sexton has bat phone to referees - Jones|
|Alonso accepts Chelsea guilty of ´silly mistakes´ in Arsenal defeat|
|Guardiola woke us up - Sane reveals half-time rocket for Man City|
|A first step to something bigger - Tsitsipas eyeing glory after shocking Federer|
|Thailand 1 China 2: Gao Lin keeps dream alive for Lippi|
|Tsitsipas in dreamland after ousting Federer, birthday boy Tiafoe breaks new ground|
|Huddersfield Town 0 Manchester City 3: Danilo, Sterling and Sane on target for ton-up City|
|Allegri: Khedira will be like a new signing for Juventus|
|Manchester City reach 100 goals in 2018-19|
|Australia v Uzbekistan: Leckie´s return is ´like a new signing´, says Arnold|
|Jordan 1 Vietnam 1 (aet, 2-4 on penalties): Keeper Van Lam the shoot-out hero|
|Federer confirms French Open return after Melbourne exit|
|I accept his decision - Gattuso axes Chelsea-bound Higuain|
|The rapid rise of Federer-conqueror Tsitsipas|
|Gracious Federer hails ´better player´ Tsitsipas after Australian Open exit|
|Tsitsipas ´happiest man on earth´ after stunning Federer|
|Harden focused on wins, not personal feats after scoring 48 points|
|PSG midfielder Verratti suffers sprained ankle|
|Inspired Tsitsipas dethrones Federer|
|PSG´s Cavani considering career finale in Uruguay|
|Feisty Collins ready to make more noise after thrashing Kerber|
|I´ve got to work on my soccer skills! - Mavs´ Doncic didn´t know ejection rule|
|Lakers won´t rush LeBron & Rondo back despite Ball injury|
|A-League Review: Victory fightback in thriller with Wellington|
|Henry explains foul-mouthed confrontation with Strasbourg´s Lala|
|Nadal wary of ´dangerous´ Tiafoe|
|Emery ´not positive´ over Bellerin injury|
|Harden scores 48 points as Rockets rally past Lakers in OT|
|Pacquiao wants Mayweather rematch after beating Broner|
|Sharapova unimpressed with questions after Melbourne exit|
|Nadal outclasses Berdych en route to quarters|
|Collins trounces 2016 Aus Open champion Kerber|
|Sanchez: Man United thriving thanks to Solskjaer|
|Sharapova crashes out of Australian Open|
|Devils´ Palmieri replaces Hall on NHL All-Star roster|
|Tuchel stunned by PSG´s nine-goal thrashing of Guingamp|
|Modric wants to extend Real Madrid stay|
|Marotta: Icardi will re-sign, Godin wants Inter|
|´F*** no!´ - Westbrook on if he´s cool with Embiid|
|Mickelson shoots 66 to stay ahead at Desert Classic|
|Real Madrid? You never know what the future holds - PSG´s Mbappe|
|Inter lacked quality in disappointing Sassuolo draw - Spalletti|
|Walton has one goal for Lakers-Rockets matchup: Keep Harden under 50 points|
|CAF Champions League Review: Simba learn Vita lesson as Sundowns find form|
19 de enero 2019
|Bayliss relishing pressure of World Cup and Ashes to finish England reign|
|Guardiola keen to keep City rhythm and challenge on four fronts|
|Fifita backs Johnson to inspire the Sharks|
|For Real Madrid, nothing is impossible - Solari refuses to give up in title race|
|Inter 0 Sassuolo 0: Spalletti´s side labour at sparse San Siro|
|Marshawn Lynch will continue playing ´if it works out´|
|Simeone excited by improving Atleti|
|Jones ´cautiously optimistic´ over Farrell ahead of Ireland clash|
|Sarri questions Chelsea motivation after Arsenal surrender|
|Emery urges Arsenal to find balance after downing Chelsea|
|Koscielny hails Arsenal fighting spirit in Chelsea win|
|Pellegrini: It was not a good idea for Arnautovic to play|
|Iran v Oman: We´re not satisfied yet, says Al Mahaijri|
|Carbery sends Munster through and ends Exeter´s lingering Champions Cup hopes|
|Dyche defiant despite offside call|
|Hasenhuttl rates Everton win as Southampton´s best|
|Benitez looking up the table after Schar inspires win over Cardiff|
|RB Leipzig 0 Borussia Dortmund 1: Witsel restores six-point cushion|
|Swansea City 1 Sheffield United 0: McBurnie punishes wasteful Blades|
|Cardiff sign Sala from Nantes for club-record fee|
|Arsenal 2 Chelsea 0: Lacazette and Koscielny fire Gunners to rousing derby win|
|Huesca 0 Atletico Madrid 3: Dominant Atleti keep pressure on Barca|
|Rashford arguably league´s best striker with Kane out - Solskjaer|
|Hafeez plays steady hand as Pakistan punish Proteas´ patient approach|