Willian's early goal gave Chelsea a winning start to their Europa League campaign in a 1-0 triumph over PAOK that made it six victories in a row for Maurizio Sarri's men.
The Brazil international's fourth strike in his last five European matches followed a surging run from Ross Barkley, who impressed in Thessaloniki.
Chelsea's winning margin should have been far wider, but they were wasteful in front of goal, with Alvaro Morata the main culprit.
But it mattered little as the Blues secured three points in what could be the toughest of their away trips in Group L.
Sarri's side quickly set about quietening the vociferous home support and within seven minutes Willian succeeded, his low shot somehow squirming under Alexandros Paschalakis' body.
Morata should have doubled Chelsea's lead soon after, but his problems in front of goal continued as he inexplicably headed wide from six yards.
The Spaniard wasted another five chances before the break as Chelsea failed to turn their domination into a healthy lead, Pedro also guilty of spurning a gilt-edged opportunity.
Marcos Alonso and Antonio Rudiger both failed to convert on the hour as Chelsea's control of proceedings continued, the latter unable to tap home from Barkley's front-post flick.
Even the introduction of last-season's top scorer Aleksandar Prijovic could not spark PAOK into action, the substitute having to live off scraps as the hosts struggled to make an impact.
Cesc Fabregas made a welcome return from a knee injury midway through the second half, while Morata's frustrating night ended with 10 minutes to play when he was replaced by Olivier Giroud.
What does it mean: No stopping Sarri
Many questioned how Chelsea would adapt to life under Sarri given the differences in his management style compared to Antonio Conte, but it seems they had no need to worry. It is now a six-match winning streak for the Italian, who has never lost a Europa League group match.
Pat on the back: Barkley brims with confidence
Barkley's fine display in midfield will have pleased Sarri and not gone unnoticed by England boss Gareth Southgate. The 24-year-old showed nice touches throughout, linked the play well and provided a fine assist for Willian – just the kind of creativity Southgate's Three Lions have been missing.
Boot up the backside: More Morata misery
When things are not going your way, the ball will just not go in. That must be how Morata is feeling at the moment. The forward was lively for the visitors, but his bad luck in front of goal continues. He might have had a first-half hat-trick, but looks short on confidence..
Key Opta Facts
- Each of Chelsea's last 10 managers have won their first European game in charge of the club, with Claudio Ranieri the last to fail to do so in September 2000 (0-2 v FC St Gallen).
- Chelsea have won each of their last four games in the Europa League, a run which includes their final three games in 2012-13 when they won the competition.
- Chelsea manager Maurizio Sarri has won 100 per cent of his group stage games in the Europa League (7/7), keeping five clean sheets in this run.
- PAOK have failed to score in six of their last seven home games in the Europa League.
- Willian has been directly involved in 13 goals in his last 15 starts for Chelsea in European competition (10 goals, 3 assists).
- Ross Barkley's assist for Chelsea's opening goal was his first in club football since April 2017 for Everton against Leicester.
Sarri's Blues return to league action on Sunday with a London derby at West Ham, while PAOK entertain AEK Athens in what is bound to be a fiery encounter. Their last meeting saw PAOK chairman Ivan Savvidis storm the pitch carrying a gun – an action that led to AEK being handed the win and PAOK deducted points, which ultimately cost them the league to AEK's benefit.
|Fortuna Dusseldorf 2 Borussia Dortmund 1: Bundesliga leaders suffer shock first loss|
|Rivera yet to make a call on sitting Panthers QB Newton|
|Pulisic would thrive in Premier League, but Berhalter expects Dortmund stay|
|Raptors coach Nurse fined by NBA for criticising referees|
|Solari ´loves´ struggling Real Madrid star Isco|
|Mourinho sacked: Pogba, Lukaku, Fred and his other Man United signings rated|
|Mourinho sacked: What does it mean for Manchester United players?|
|Ibrahimovic provides short-term pain, long-term gain for US - Berhalter|
|River Plate 2 Al Ain 2 (aet, 4-5 on penalties): Perez misses decisive spot kick|
|De Bruyne and Aguero back for City, surprise debut for Garcia|
|Uncapped Varun ´panicked a little´ after huge IPL deal|
|Replays scrapped for FA Cup fifth round|
|Pochettino readies big guns for Gunners|
|Ex-Wasps star Wade struggling with NFL transition|
|BCCI rejects ´baseless´ claims over Kohli-Paine ´banter´|
|Ibrahimovic re-signs with LA Galaxy for 2019|
|Mourinho sacked: Solari not worried for Real Madrid job|
|Mourinho sacked: 895 days and more than £700,000 in five-star luxury|
|ES Tunis 1 Guadalajara 1 (6-5 on penalties): Dhaouadi holds nerve to settle ill-tempered affair|
|Murphy lands permanent Tigers role|
|Mourinho sacked: Real Madrid´s Marcelo lauds ´great coach´ after United exit|
|Unadkat, Varun the top buys at IPL auction|
|Emery prepared to give youth a chance in north London derby|
|Tottenham extend Vertonghen contract until 2020|
|Panthers safety Reid receives seventh random drug test of 2018|
|Kovac relishing Klopp challenge in Champions League|
|Bancroft to return, teenager Lamichhane to fly the flag for Nepal in Big Bash|
|Liverpool still have plenty of work to do - Klopp|
|Messi ´never imagined´ his success after winning record fifth Golden Shoe|
|WATCH: Timberwolves´ Gibson tries to block shot with his trainer|
|Mourinho sacked: Klopp praises departed Manchester United boss|
|Mourinho sacked: Jose the best Manchester United manager since Ferguson - Gerrard|
|Mourinho sacked: Ferdinand calls for ´fresh ideas´ at Man United|
|Mourinho sacked: The mystique has gone as United spell ends in divorce|
|´He´s an interest not only for us but for many´ - Zola praises rumoured Chelsea target Wilson|
|Mourinho sacked: Pochettino focused on Spurs amid Manchester United rumours|
|Mendis eyes double-century for departing Samaraweera|
|Mourinho sacked: Zola expects Jose to be in another job ´soon´|
|Mourinho sacked: Five reasons it went wrong at Manchester United|
|Mourinho sacked: Jose´s Manchester United record in Opta stats|
|Mourinho sacked: Pogba, Ronaldo and Jose´s biggest bust-ups|
|Mourinho sacked: Blanc, Solskjaer - the men who could steady the United ship short-term|
|Mourinho sacked: The football world reacts|
|Mourinho sacked: What former United stars said after Liverpool loss|
|Mourinho sacked: Where next for the axed Manchester United boss?|
|UEFA to investigate alleged racist incidents at Vidi-Chelsea|
|Australia unchanged for rest of India series|
|Mourinho sacked: Pogba´s tweet a dig at departing Man United boss?|
|Newton left frustrated by shoulder injury as Panthers lose again|
|Mourinho sacked: Pochettino & Zidane lead potential Man Utd replacements|
|Mourinho sacked: Neville urges Man United to go for Pochettino|
|Boylen pleased to see Bulls react to red rag in Thunder fracas|
|Icardi and Inter ´very far´ apart in contract negotiations|
|Mourinho leaves Manchester United|
|Curry humbled by latest milestone|
|Robertson: ´Unbelievable´ Alisson will bounce back from error|
|Curry scores 15,000th regular-season point in Warriors win|
|Rams star Gurley ´day-to-day´ with knee inflammation|
|Saints poised to clinch NFC top seed after topping Panthers|
|Mathews, Mendis centuries frustrate New Zealand|
|Kohli: Relentless Australia deserved victory|
|Relief for Paine and Australia after ending Test drought|
|Australia level series with dominant win over India|
|Libertadores holders River learn group as CONMEBOL boss calls for end to violence|
|Chargers RB Gordon planning to return against Ravens|
|Kobe Bryant visit motivated Browns´ Jabrill Peppers|
|De Bruyne: Fatigue not behind injury woes|
|´That´s not my concern´ - Broncos coach Joseph on job security|
|Lowry on Leonard´s free agency: I just want him to be happy|
|Yankees give Sabathia $500K bonus despite ejection|