Former Brazil star Cafu has expressed his sadness after the death of two construction workers at the Arena de Sao Paulo on Wednesday.
A giant crane collapsed as workers tried to put the final part of the roof on the stadium, which will host six matches at the 2014 FIFA World Cup.
Cafu, who made 142 appearances for Brazil and won two World Cups, said it was an accident that happened at construction sites.
"I think that accidents can happen anywhere. If you are rebuilding your house, something tragic can happen," the 43-year-old said.
"Can you imagine a construction of that size? Arena Corinthians is a massive construction site, so I think that is something normal. I think that this shouldn't affect our preparation for the World Cup.
"Obviously we are all sorry about the workers and the families' loss. These people were helping to build Arena Corinthians on time so we are deeply sorry for their families."
Sao Paulo defender Lucio, another former Brazil international, said he understood there would be fear and anxiety after the deaths.
The former Bayern Munich defender, who was in Germany when they hosted the World Cup in 2006, said the organisation in Brazil was steps behind.
"Brazil is so much bigger than Germany when they hosted the World Cup in 2006. This situation makes any organising attempt much more complex," Lucio said.
"Germany is smaller but because of their culture they are much more organised, more reliable, they keep their promises.
"I think Brazil has to be more clear and organised about everything. The country shouldn't overlook the small details.
"Obviously some will fear and get anxious about our capabilities to host this event after what has happened. I think we are capable of hosting the World Cup but how good the event will be? That's another question.
"We ask if supporters will have good public transport, a safe environment, and nobody knows the answer.
"We hope we can do it but there is no question that Germany was ahead of us by far at this stage."
|Brazil great Ronaldo ´almost certain´ Cristiano will stay at Real Madrid|
|Bony determined to prove his worth at Manchester City|
|Neville shocked by Wayne Rooney decision delay|
|Ceballos denies Real Madrid deal complete|
|Garcia report vindicates bid´s integrity, says Qatar 2022 Committee|
|Pele, Puskas and centurion Daei - who is left for Ronaldo to catch?|
|He is not worth £60m - Liverpool´s potential Van Dijk fee concerns Nicol|
|New Real Madrid deal for Zidane is Perez´s first job|
|Perez praises James amid transfer talk|
|Victory, Sydney to meet in A-League opening round|
|Madrid, Man United yet to hold Morata talks – Perez|
|Ronaldo is angry but will stay at Madrid, says Perez|
|If we buy Mbappe, who comes out? – Perez|
|Confederations Cup Social Diary: Ronaldo strikes a pose, Chile reminisce and mum´s the word|
|I didn´t realise we´d won! - Germany U21 hero Pollersbeck|
|Confederations Cup Diary: Transfer talk gets Santos laughing and why you should never lose a Mexico|
|Better Call Saul - Atletico star hits hat-trick to send Spain into U21 Euro final|
|Garcia Report: Barcelona and Madrid´s Qatar dealings not linked to World Cup vote|
|Sevilla announce agreement for Banega return|
|I don´t play for money - Alves says farewell to Juve as Man City move looms|
|Lucas Lima denies Barcelona offer as he weighs up Santos renewal|
|Garcia Report: Conclusions of investigation into Qatar 2022 bid|
|Pollersbeck the shoot-out hero as Germany beat England for U21 Euro final spot|
|Maldini beaten in professional tennis debut|
|Santos ´will go to the end of the world´ with Portugal stars|
|Pirlo taught Vidal how to play - Borghi|
|Garcia Report: Conclusions of investigation into Russia 2018 bid|
|What is the ´Garcia Report´ and why does it matter?|
|Australian goalkeeper Vukovic earns Genk move|
|Hernandez returns to Mexico training ahead of Germany showdown|
|Sirigu leaves PSG to join Torino|
|Guerreiro out, Silva major doubt for Portugal´s semi-final clash|
|FIFA releases full ´Garcia Report´ into World Cup bidding process after Bild leak|
|Leicester midfielder Mendy wants Bordeaux move|
|Ronaldo, Morata and Mbappe futures discussed by Del Bosque|
|Banega ´very close´ to Sevilla return, agent reveals|
|Mexico about more than Hernandez, warns Mustafi|
|Premier League is right for Real Madrid star Ronaldo, says Meireles|
|Milan trying to close Biglia deal amid Premier League interest, agent claims|
|Germany´s Can not scared of Ronaldo|
|Chile are ready to counter Ronaldo – Pizzi|
|Ginola advises Mbappe to stay at Monaco|
|Calhanoglu waiting for ´final talks´ as AC Milan move nears|
|Sanchez not distracted by transfer talk, says Chile coach Pizzi|
|Allegri hails ´future Juventus leader´ Bonucci|
|Has Morata´s wife dropped a hint of Man Utd move?|
|Stats amazing - Can marvels at Liverpool newcomer Salah|
|FIFA response expected after Bild reveal Qatar World Cup report ´leak´|
|Shanghai Shenhua seek to tie down Guarin and Moreno|
|Germany v Mexico: Werner´s eyes on the prize as El Tri aim to start on time|
|Asensio praises Donnarumma amid Real Madrid links|
|Giggs: Rooney could stay at Manchester United|
|WATCH: McCollum guesses Atletico star Griezmann´s NBA impressions|
|Suarez wants Arsenal´s Bellerin at Barcelona|
|Montella hopeful Donnarumma will stay at Milan|
|Confederations Cup Diary: Ronaldo gold for Silva, don´t touch the dial in Chile|
|Madrid allow Llorente to leave for La Real|
|Anything Drogba can do - Hazard invests in new NASL franchise|
|Lyon to keep Lacazette unless replacement bought, says president Aulas|
|Milan goalkeeper Donnarumma apologises for social media ´uproar´|
|Lyon snap up €10m Chelsea forward Traore|
|Van Aanholt excited to learn new ideas from Palace boss De Boer|
|FIFA referees chief praises VAR but sees work to be done|
|You´re a wizard, Hummels: Bayern defender celebrates Harry Potter anniversary|
|Kolarov keen on Lazio return|
|Fiorentina put up for sale by Della Valle family|
|Russian World Cup chief labels doping claims ´made-up news´|
|Like father, like son: Germain hoping to write his own ´beautiful´ Marseille story|
|New Nantes coach Ranieri wants to ´forget´ Leicester|
|Watford new boy Hughes: Premier League too hard to turn down|
|Confederations Cup Social Diary: No rest for Ronaldo, Trapp still smiling and FIFA honours Marc-Vivi|
|Parish surprised by Allardyce´s Palace exit but excited by De Boer arrival|
|No stepping stone: De Boer hopes to see out three-year Crystal Palace deal|
|Dutch courage needed? De Boer follows likes of Van Gaal & Koeman to Premier League|
|Frank de Boer appointed new Palace boss|
|I´m in love with Italy - Former AC Milan star Pato open to Inter switch|
|Portugal v Chile: Pizzi ready for tough challenge as champions of Europe and South America clash|
|De Boer waits in the Eagles´ wings: Can the Dutchman improve on Allardyce, Pardew and Pulis?|
|Help me score 10 goals! - Guangzhou defender Feng sets out Paulinho´s Barcelona move conditions|
|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|
|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|
|PSG´s Verratti would be perfect fit at Barcelona – Garcia|
|Portland Timbers 2 Seattle Sounders 2: Dempsey scores stoppage-time equaliser to deny hosts|
|Raiola says Donnarumma will meet with Milan amid confusion|
|Cahill: Once I lead, the others follow|
|Pogba surprised by Mbappe, Dembele talent|
|Donnarumma claims he was hacked over Milan renewal post|