Germany head coach Joachim Low believes his experimental side must find an extra gear to get past Chile in their next Confederations Cup match.
The world champions began with a 3-2 victory over Australia in Sochi on Monday, where Lars Stindl and Leon Goretzka netted their maiden international goals either side of a converted penalty from captain and man-of-the-match Julian Draxler.
A pair of errors by goalkeeper Bernd Leno allowed Tom Rogic and Tomi Juric to pull Australia back into the contest when Die Mannschaft should have been out of sight by weight of first-half opportunities alone.
Low rested many of his leading stars for the tournament and, although his youth and fringe players sparkled for the first hour, they closed the show nervously as Australia sniffed an equaliser.
The 57-year-old warned Copa America holders Chile will be a different proposition entirely after opening Group B with a win of their own, 2-0 against Cameroon in Kazan.
"Chile is going to be a match on an entirely different level because Chile is playing with great intensity and ability," Low said at his post-match news conference. "We must retain our stability over 90 minutes, not 60.
"In the first half we played very well, good combinations and everything was under control. The bad thing of it all was we had only a 2-1 lead. We had a number of other opportunities.
"We were unable to score a third or a fourth. Australia didn't really have any opportunities other than their goal.
"In the second half, after 60 minutes, we lost our common thread and our attacks were not so consistent. We need to work on that to retain our stability.
"But with a new team I think things have worked very well. I don't think you should have excessively high expectations. There were good approaches by my team."
Germany's tactical flexibility during the first half, with Draxler roving in from the left flank as Julian Brandt caused havoc down the right and the midfielders inside interchanged with aplomb, was a delight to behold at Fisht Stadium.
Nevertheless, Low was keen to warn that Chile are also masterful in this department.
"Chile are one of the world's best teams, no matter what you say about this tournament," he said. "Chile are well experienced and have fantastic individual players. In terms of tactics they are as flexible as any other team.
"They can change things as matches are still going. It's amazing to see how they are playing. Every tournament has different dynamics."
Schalke midfielder Goretzka was involved in the build-up to Stindl's fifth-minute opener and was clattered by Massimo Luongo to win Germany's penalty before enjoying his own moment of glory, leaving the coach suitably impressed.
"He was very strong," Low added. "In the past days he has been involved in our activities and this match has shown he is a very present personality.
"He has won one-on-ones and he is running from the midfield deep into the area and that is very hard to fight back from for the opponents. He has made a very good impression."
|Help me score 10 goals! - Guangzhou defender Feng sets out Paulinho´s Barcelona move conditions|
|Vettel does not think before he acts - Ricciardo|
|Make Mayweather-McGregor free for fans, urges Hopkins|
|Man Utd must wait a year for Talisca, say Besiktas|
|Vettel v Hamilton: Famous sporting squabbles|
|Jose Mourinho pays tribute after the death of his father|
|F1 title race gets nasty as Vettel and Hamilton clash in Baku|
|Cristiano Ronaldo needs time ´to reflect´ on Real Madrid future|
|Draxler, Kimmich and Can lavish praise on ton-up Low|
|Kalac: Donnarumma´s head turned by greedy Raiola|
|Bayern Munich target Brandt staying at Bayer Leverkusen|
|All Blacks boss Hansen hits back at ´desperate´ Gatland|
|PSG´s Verratti would be perfect fit at Barcelona – Garcia|
|Ballin announces retirement from rugby league|
|Portland Timbers 2 Seattle Sounders 2: Dempsey scores stoppage-time equaliser to deny hosts|
|Santana helps Twins pull off rare feat against Indians, Dodgers win 10th straight|
|Spieth had fun going ´nuts´ after draining bunker shot|
|Stanton officially commits to Home Run Derby|
|Kvitova revels in perfect comeback with Birmingham title|
|Raiola says Donnarumma will meet with Milan amid confusion|
|Drexler says LeBron James is wrong about first ´Big Three´|
|Long-time friend Thomas called incredible Spieth bunker shot|
|Newton: Super Bowl ring only thing missing from my life|
|Spieth holes bunker shot to win Travelers Championship|
|Astros taking ´conservative´ approach with Keuchel recovery|
|Harvick pulls away late to end winless drought|
|Cahill: Once I lead, the others follow|
|Pogba surprised by Mbappe, Dembele talent|
|Donnarumma claims he was hacked over Milan renewal post|
|Rahane century sets India up for Windies hammering|
|Postecoglou rues missed opportunity as Australia go out|
|Confederations Cup Diary: Drax on the beach, and did FIFA just troll Akinfeev?|
|Malan tapped into Voges´ knowledge ahead of dream England debut|
|Donnarumma to discuss AC Milan renewal|
|Mustafi hopes ´brilliant´ Sanchez can stay at Arsenal|
|Pizzi hails returning Bravo as Chile go through in Russia|
|Sevastova ends seven-year title drought with Mallorca triumph|
|Confederations Cup Social Diary: Cahill honoured as Ronaldo posing takes a weird turn|
|Bacca hints at Real Madrid exit for James|
|Draxler sees bright Germany future for goal hero Werner|
|Centurion Low shares the credit after landmark Germany win|
|Balotelli signs new Nice contract|
|Broos confused by VAR farce in Germany defeat|
|Werner´s originals give Germany striking solution|
|Wimbledon seed not a motivating factor for imperious Federer in Halle|
|Brave Australia out but on the right track|
|Low brings up 100th win as Germany down Cameroon|
|Malan the man on debut as England seal series|
|VAR leads to Mabouka red after referee initially sends off wrong man|
|Germany 3 Cameroon 1: World champions top Confederations Cup group amid more VAR confusion|
|Chile 1 Australia 1: Substitute Rodriguez seals Portugal semi-final|
|Sanches expects to stay at Bayern Munich|
|Ricciardo stunned by victory in ´crazy race´|
|Lopez the comeback king at Queen´s|
|FIFA looking into Russia doping claims as Mutko insists ´there has never been a problem´|
|Vettel ´disgraced himself´ in Azerbaijan, says Hamilton|
|Romero returns to spotlight with BMW International Open victory|
|Yesterday, today and tomorrow! - Donnarumma sticking with Raiola|
|Allegri highlights Pjaca absence as key to Champions League final defeat|
|Ricciardo benefits from Hamilton´s head rest woe as tensions with Vettel boil over|
|Ecstatic Rossi loving ´unbelievable´ title tussle|
|Kvitova wins first title since knife attack|
|Man City´s Bernardo Silva allays ankle injury fears|
|Andy and Jamie will play Wimbledon doubles - Judy Murray|
|Cahill set for 100th cap and place in Australia history|
|Laporte backs Noves but demands improvement from France|
|´Spectacular´ Sanchez would improve Bayern, says Chile team-mate Vidal|
|Fabulous Federer trounces Zverev to claim ninth Halle title|
|Chelsea loan Dabo to Vitesse|
|Rossi edges out Petrucci in Assen as Dovizioso claims championship lead|