Ki Sung-yueng says he has no problem getting tough with his South Korea team-mates if it helps them to make the most of their World Cup campaign.
Shin Tae-yong's side take on Sweden in Nizhny Novgorod on Monday in their opening match of a tough-looking Group F that also contains Mexico and Germany.
Ki only turned 29 in January but is one of the most experienced heads in the team, having competed at two previous World Cup finals, two Olympic tournaments and two Asian Cups, finishing as a runner-up in 2015.
The midfielder admits it is a different feeling to head into football's grandest competition as team captain but he is determined to make sure every one of the South Korea players shows they deserve to be in Russia.
"We've been preparing for the World Cup for four years and worked very hard, not only those who made the squad but those who didn't," he said. "As a captain, I feel a strong sense of responsibility and I want to do well.
"I want the players to prepare in a comfortable way, so I try to help them in any way. Sometimes, there was tension within the team, and sometimes the atmosphere got too light, so I tried to balance the two. I really want the players to take advantage of this opportunity. It will be a really important experience in their lifetime."
Ki, who was only 21 at his first World Cup in South Africa in 2010, added: "Compared to 2010, I've got a little bit older. I was the youngest then.
"This is my third World Cup and the World Cup of course is a very tense situation, there's a lot of pressure.
"Pressure-wise for me, I think it's a lot less, but now I'm captain and I feel a stronger sense of responsibility. I think that's the biggest difference."
It has been estimated there could be as few as 1,500 South Korean fans inside the 45,000-seater Nizhny Novgorod Stadium on Monday, but former Swansea City man Ki is just hoping for a packed crowd – regardless of their allegiance.
"I think it's good to have a lot of people in the crowd. Whether they are Swedish or Korean really doesn't matter," he said. "The players have a lot of experience in that aspect. It would be great if we have a full stadium, if the players can feel the World Cup atmosphere.
"Korea have more experience than Sweden. I don't know how many Swedish players have played in the World Cup but we have quite a few players who have had that experience. All that's left is for us to show you on the pitch."
|F1 Raceweek: Mercedes taking no comfort in points advantage|
|Benitez charged by FA for referee comment relating to Zaha treatment|
|Cibulkova dumps out hampered Halep in Wuhan|
|Mourinho questions his players amid reports Pogba won´t captain United again|
|European Ryder Cup diary: Fleetwood´s hair delights Poulter|
|USA Ryder Cup diary: Tiger´s roaring reception, McEnroe´s bold prediction|
|Loans to be limited under new FIFA proposal|
|Prolific Nadolo signs new Montpellier contract|
|Modric? For us, Messi is the best – Valverde|
|Murray makes winning start in Shenzhen|
|Mickelson would cherish first victory on European soil|
|Hodge hoping pressure proves too much for South Africa|
|Woodward in show of support for under-fire Mourinho|
|Mickelson jokes he wants ´a shot a side´ from Tiger in Thanksgiving showdown|
|Reed: Captain America is a villain in Europe|
|Duminy to captain Proteas as Elgar replaces injured Amla|
|No Tottenham timeline for Lloris, Vorm returns|
|Woods ready for ´awesome environment´ on Ryder Cup opening hole|
|Tony Bellew determined to prove doubters wrong against Oleksandr Usyk|
|Tuchel explains why he likes Neymar at number 10|
|Manchester United smash revenue record but profits down|
|Furyk downplays Ryder Cup pairings talk, says Tuesday is about individuals|
|Rejuvenated Tiger out to improve poor Ryder Cup record|
|Saunders fined £100,000 for ´sickening´ online video|
|Hazard can reach his full potential with Sarri´s Chelsea - Zola|
|Ryder Cup heading back in Europe´s direction, says Niall Horan|
|Wow! Klopp hails Sarri´s Chelsea transformation|
|Giovinazzi to partner Raikkonen at Sauber in 2019|
|Bjorn backs ´phenomenal´ Rahm to continue trend of Spanish success|
|Durant in no rush to decide Warriors future|
|Rossi to face anti-doping hearing|
|Mignolet to return for Liverpool against Chelsea|
|Premier League ´interesting´ for Germany boss Low|
|Wilder wins Twitter vote to be Joshua´s next opponent|
|BREAKING NEWS: Isco an El Derbi doubt due to appendicitis|
|Juventus won´t rest Ronaldo ahead of Napoli clash|
|Slater cleared to play in NRL Grand Final|
|Top seed Begu sent packing in Tashkent|
|This isn´t my last hurrah in Ryder Cup, insists Poulter|
|Barba back in NRL with North Queensland Cowboys|
|Arsenal wait on Mkhitaryan and Sokratis|
|All Blacks wary of Pumas pack ahead of Buenos Aires Test|
|Ryder Cup has special place in Pep Guardiola´s heart, says Fleetwood|
|Mbappe ready to take over from Messi and Ronaldo, says Trezeguet|
|Molinari: Ryder Cup pressure far outweighs any major|
|Koepka heads PGA Tour´s Player of the Year nominations|
|Lampard: Mourinho still a great manager|
|United States and Europe reveal Ryder Cup practice groupings|
|Bulldogs´ fine for ´Mad Monday´ antics halved|
|Bennett to leave Broncos after 2019 NRL campaign|
|American League postseason picture becomes clear|
|Steelers edge Buccaneers for first win|
|Gatland wants Webb available for World Cup|
|Modric: Ronaldo, Messi out of this world but my season deserved recognition|
|Love says Cavs ´will surprise a lot of people´|
|George believes Thunder can compete for championship this season|
|Messi is the greatest ever – Eto´o|
|Messi to miss Argentina´s upcoming friendlies|
|Dolphins say Hayes tore ACL attempting to avoid roughing-the-passer penalty|
|Modric deserved FIFA Best award – Ramos|
|Thibodeau open to potential Butler trade|
|Modric wanted Ronaldo, Messi at awards ceremony|
|Brewers´ Yelich active after elbow hit|
|Anthony on coming off Rockets´ bench: Whatever I have to do to help this team win|
|Raiders coach Gruden says Mack trade was hard on players|
|Bale lauds ´unbelievable´ Modric after FIFA Best triumph|
|Ronaldo, Messi lacked respect with FIFA Best awards snub - Capello|
|New Zealand the benchmark but England can win World Cup - Mitchell|
|FIFA Best Award a dream come true for Modric|
|Lakers a long way from Warriors, warns LeBron|