Brazil coach Luiz Felipe Scolari has urged his troops to sharpen up before their World Cup warm-up with Panama.
Scolari blasted his side after a Sunday training session which he said he "didn't like at all" owing to poor marking and perceived sloppiness.
And with only nine days to go to their opening World Cup match against Croatia in Sao Paulo, the man who led the Selecao to glory in 2002 insisted it was time to crack the whip Sunday, "the marking was sloppy, we left spaces in the middle of the park and took up questionable positions," Scolari observed.
"We cannot let our attitude slip a week before the Cup. We cannot lose the identity which we forged at the Confederations Cup," the dress rehearsal his side won almost 12 months ago.
Tuesday's test at the Serra Dourada stadium in Goiania, some 200 km (130 mi) from the capital Brasilia, is the penultimate chance for Scolari to look at options in reserve.
Friday against Serbia in Sao Paulo is his side's final friendly outing before the real thing starts with the Croatians in a Group A also comprising Mexico and Cameroon.
Scolari, calling for more inventive subtlety and tactical nous from his charges, said the players know full well what he demands and expects.
"I urged them what I always do – to be serious and play each match as if it were the last."
Scolari can make up to six substitutions in the game against the Panamanians and said he would use the chance to run the rule over the options at his disposal.
Even so, against Croatia he will essentally keep faith with the players who saw off Spain in the Confederations final.
Scolari, who said he would have liked a few more days to prepare for the June 12 opener at Sao Paulo's Corinthians Arena, said Panama were not to be underestimated.
"They are a good side — we have been following their work. We have to take the game seriously and see how we are coming along."
Scolari stressed no side in Brazil's group would be easy to beat – noting Cameroon are coming off a friendly draw with Germany, no less.
Some 20,000 fans were on hand to see Brazil train under Scolari's watchful gaze and jostle to catch a glimpse of the likes of Neymar.
Resting skipper Thiago Silva, plus midfielders Paulinho and Fernandinho, Scolari is set to give Ramires a start ahead of Hernanes and Dante.
Hulk is also set to start in a 4-2-3-1 formation, completing, along with Oscar and Neymar, a trident supporting spearhead Fred.
Brazil squad
Goalkeepers: Julio Cesar (Toronto FC), Jefferson (Botafogo), Victor (Atletico Mineiro)
Defenders: Marcelo (Real Madrid), Daniel Alves (Barcelona), Maicon (AS Roma), Maxwell, Thiago Silva (both Paris St Germain), David Luiz (Chelsea), Dante (Bayern Munich), Henrique (Napoli)
Midfielders: Paulinho (Tottenham Hotspur), Ramires, Willian, Oscar (all Chelsea), Hernanes (Inter Milan), Luiz Gustavo (VfL Wolfsburg), Fernandinho (Manchester City)
Forwards: Bernard (Shakhtar Donetsk), Neymar (Barcelona), Fred (Fluminense), Jo (Atletico Mineiro), Hulk (Zenit St Petersburg)
SQUADS IN BRIEF
Mexico
Luis Montes will not compete for Mexico at the World Cup in Brazil after suffering a serious leg fracture during a 3-1 victory over Ecuador in a friendly on Saturday.
Midfielder Montes had just scored the goal that put Mexico in front before being carted off in obvious pain on a stretcher in front of the pro-Mexican crowd of almost 85,000 at the Dallas Cowboys Stadium.
Mexico manager Miguel Herrera announced that Javier Aquino from Villareal will replace Montes.
Squad
Goalkeepers: Jose de Jesus Corona (Cruz Azul), Guillermo Ochoa (Ajaccio), Alfredo Talavera (Toluca)
Defenders: Miguel Layun (America), Carlos Salcido (Tigres), Paul Aguilar (America), Andres Guardado (Bayer Leverkusen), Hector Moreno (Espanyol), Francisco Javier Rodriguez (America), Diego Reyes (Porto), Rafael Marquez (Leon)
Midfielders: Miguel Angel Ponce (Toluca), Jose Juan Vazquez (Leon), Javier Aquino (Villarreal), Hector Herrera (Porto), Isaac Brizuela (Toluca), Marco Fabian (Cruz Azul), Carlos Pena (Leon)
Forwards: Oribe Peralta (Santos), Javier Hernandez (Manchester United), Giovani dos Santos (Villarreal), Raul Jimenez (America), Alan Pulido (Tigres)
Nigeria
Nigeria have left out Sunday Mba who won the country a third Africa Cup of Nations last year from their final squad for the World Cup.
But Nigeria coach Stephen Keshi said the midfielder has since not shown enough desire to be part of the 23-man squad going to Brazil.
The six other players who will not be on the flight to Brazil next week are Joel Obi (Inter Milan), Nosa Igiebor (Real Betis), Nnamdi Oduamadi (AC Milan), Obinna Nsofor (Lokomotiv Moscow), Daniel Akpeyi (Warri Wolves)and Ejike Uzoenyi (Enugu Rangers).
Surprise inclusions are Ukraine-based forward Babatunde Michael and Kunle Odunlami, who features for Nigerian side Sunshine Stars.
Squad
Goalkeepers: Vincent Enyeama (Lille/FRA), Chigozie Agbim (Gombe United), Austin Ejide (Hapoel Be'er Sheva /ISR)
Defenders: Elderson Echiejile (Monaco/FRA), Efe Ambrose (Celtic/SCO), Godfrey Oboabona (Rizespor/TUR), Azubuike Egwuekwe (Warri Wolves), Kenneth Omeruo (Middlesbrough/ENG), Juwon Oshaniwa (Ashdod FC/ISR), Joseph Yobo (Norwich City/ENG), Kunle Odunlami (Sunshine Stars)
Midfielders: John Mikel Obi (Chelsea/ENG), Ogenyi Onazi (Lazio/ITA), Gabriel Reuben (Beveren/BEL), Michael Uchebo (Cercle Brugge/BEL), Ramon Azeez (Almeria/SPA)
Forwards: Ahmed Musa (CSKA Moscow/RUS), Shola Ameobi (Newcastle United/ENG), Victor Moses (Chelsea/ENG), Emmanuel Emenike (Fenerbahce/TUR), Peter Odemwingie, (Stoke City/ENG), Uche Nwofor (Heerenveen/NED), Babatunde Michael (Volyn/UKR)
