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."
|Koeman lauds ´clever´ Rooney after 200th Premier League goal|
|Burnley boss Dyche tells Wood to be like Neymar|
|Mbappe to PSG will ruin Ligue 1, warns Aulas|
|Kershaw gearing up for Dodgers return after tossing simulated game|
|Rooney revels in 200th Premier League goal as Everton hold City|
|I´m sorry, I´m sorry - Gatlin finally apologises for drug bans|
|West Brom´s Robson-Kanu loses red card appeal|
|Costa would fit in at Marseille – Eyraud|
|One of the proudest days of my life - Pep Guardiola delighted with City effort in Everton draw|
|Wayne Rooney to discuss England return with Gareth Southgate|
|Koeman disappointed despite ´good result´ at City|
|Boxing world laughing at McGregor over Mayweather fight, says Malignaggi|
|How Rooney reached 200 Premier League goals - the numbers behind the milestone|
|Manchester City 1 Everton 1: Sterling strike denies visitors after Rooney milestone|
|Azarenka pulls out of US Open over childcare issue|
|Wayne Rooney scores 200th Premier League goal|
|Iturbe joins Tijuana on loan|
|Vardy fitness boost for Leicester ahead of Blades cup tie|
|Al Ain 0 Al Hilal 0: All square after scrappy quarter-final first leg|
|Clement reminds Abraham he´s ´not here on work experience´|
|FIA considering driverless safety car for F1 races|
|City to pay tribute to victims of Manchester and Catalonia attacks|
|De Ligt signs four-year Ajax extension|
|CAS dismisses Diack´s appeal against life ban|
|Chris Froome claims Vuelta red jersey, as Vincenzo Nibali wins stage three|
|Kondogbia departs Inter for Valencia loan|
|Carl Frampton splits from manager Barry McGuigan|
|Spurs star Kane unconcerned by continued August hoodoo|
|TIU investigating suspicious betting patterns around Dolgopolov-Monteiro|
|Cutrone to feature in Montella´s immediate Milan plans|
|Guardiola one of the best - Ederson had no doubts over Manchester City move|
|They´re just rumours - Nice´s Fournier plays down talk of Barca move for Seri|
|Chelsea´s ´great character´ key to Wembley win - David Luiz|
|Martial backs Pogba for Ballon d´Or within five years|
|This is not the movies - Ward ready to face Bellew at cruiserweight|
|So stupid - Muller rues knee injury after ´helicopter´ crash|
|Le´Veon Bell not leaving Steelers unless traded|
|Feyenoord sign winger Larsson from Heerenveen|
|Ritchie and Phillips return to Scotland squad for qualifiers|
|Gayle and Samuels return to West Indies ODI squad|
|Sakho asking price ´much too expensive´ for Palace boss De Boer|
|Costa calls Conte ´disrespectful´ over ´moment of madness´ text message|
|Ederson backs Neymar´s Ballon d´Or ambition|
|Pakistan to host World XI followed by Sri Lanka and West Indies|
|Burnley land Chris Wood in club-record transfer|
|Man City outcast Nasri joins Eto´o at Antalyaspor|
|Steve McClaren heads to Israel with Maccabi Tel Aviv|
|Mayweather v McGregor: Five things the UFC star has to do to shock the world|
|Wake up Floyd, it´s all over - McGregor trolls Mayweather with knockout prophecy|
|Early hours third-round draw brings more ridicule for EFL Cup|
|Arsenal send Jenkinson and Bramall to Birmingham|
|Mayweather-McGregor is a circus and I´d beat them both - Horn|
|Roberto eyes Barca stay after revelling in midfield role|
|Dimitrov seeking to harness Masters momentum ahead of Flushing Meadows|
|Lewandowski irked by busy Bayern pre-season|
|Legend Ambrose blasts ´embarrassing, pathetic´ West Indies|
|Lealiifano to join Ulster on short-term deal|
|Coutinho should decide his future - Manchester City´s Ederson supports Barca target|
|Windies´ Brathwaite reported for suspect action|
|Ibrahimovic fighting fit for possible Manchester United return|
|Halep apologises to fans after Muguruza mauling|
|Rummenigge defends Barcelona´s Dembele bid|
|Titans sack Henry but deny rift with Hayne|
|Fernandinho sounds Rooney warning for Manchester City|
|Brighton sign Izquierdo in club-record deal|
|Avila saves Cubs with walk-off hit against Blue Jays|
|MLS Review: NYC, Sounders score stoppage-time winners|
|LeBron to Knicks? Griffin can see it happening|
|They shouldn´t be there! – Neymar hits out at Barca board|
|QLD boss Walters dismisses Titans links|