Gareth Southgate believes it will be an "interesting" World Cup if penalties akin to the one England conceded against Tunisia continue to be awarded.
England claimed a 2-1 win over Tunisia in their opening Group G encounter in Volgograd on Monday, but looked set to have to settle for a draw after Harry Kane's opener was cancelled out by a contentious spot-kick from Ferjani Sassi.
Sassi converted from 12 yards after Kyle Walker was penalised for catching Fakhreddine Ben Youssef with his arm.
England then saw two penalty appeals waved away despite Kane appearing to be impeded in the box on each occasion.
The Three Lions seemed to be running out of ideas as they struggled to create chances in the second half, having wasted a plethora of opportunities in the first.
However, Kane headed home the winner at the far post in the 91st minute to spare England's blushes, though Southgate still expressed his bemusement at referee Wilmar Roldan's decisions.
"We recovered from a really harsh decision and kept our composure," Southgate told a media conference. "Our set-plays were a threat all night, we worked on them and got just reward for that.
"I think if it's a penalty at one end it has to be a penalty at the other. Once the first one is given, it wasn't going to be overturned [by VAR] because it wasn't going to be a clear and obvious error.
"If penalties are going to be given for that, it's going to be an interesting tournament, I think there were similar offences at the other end of the pitch."
England midfielder Dele Alli appeared to be struggling with an injury in the first half but was not withdrawn until the 80th minute.
Southgate said of the Tottenham star: "We had to keep monitoring Dele. He was having a little bit of an issue before half-time but he felt he could carry on. The runs he was making and the way he was pressing the ball was still causing a problem."
Put to him that this was the perfect opening game for England as they emerged from it with a win but with plenty to work on, Southgate responded: "We are a team that is improving and developing, therefore there will always be things that we can be better at. We're a long way from perfection."
Southgate made his World Cup debut as a player against Tunisia in 1998, England starting that campaign with a 2-0 win.
Asked about the differences between that game and his World Cup bow as a manager against the same opposition, Southgate said: "I was sat in a drug testing room with Teddy Sheringham while everyone else was celebrating [in 1998].
"Tonight I'm at least able to experience a little bit of what the fans are feeling and the feel of the dressing room. But, of course, the difference being that, as a player you enjoy the moment a little bit longer, as a coach you're into looking at the game back on the way home and immediately focusing everybody around you on the next task. The enjoyment lasts a little bit less time."
18 de diciembre 2018
|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|
|Ronaldo confirmed Juventus interest in January – Mendes|