Iran face Bosnia-Herzegovina on Wednesday knowing they must win to have any chance of making the knockout stages of the FIFA World Cup.
Carlos Queiroz's side will need to put the disappointment of their late defeat to Argentina behind them and break from their shackles if they are to finish second in Group F, while hoping rivals Nigeria lose.
But first the focus must fall on ending their goalscoring drought, with Iran one of only two sides at the World Cup - Greece being the other - who have yet to score.
The display against Argentina will have given them a huge confidence boost, though, as Iran came within a few minutes of producing one of the most surprising results in World Cup history, until Lionel Messi's moment of brilliance.
Iran created chances of their own but Reza Ghoochannejhad and Ashkan Dejagah spurned the best of them, leaving Queiroz's men to contemplate what might have been.
Bosnia's debut at the global showpiece has not gone according to plan as their impressive form in qualifying, where they scored 30 goals, has failed to materialise in Brazil.
Defeats to Argentina and Nigeria have ended their hopes of qualification for the second round but Wednesday's match offers an opportunity to restore some pride and record a first World Cup win.
Talismanic striker Edin Dzeko has endured a frustrating tournament, missing a host of chances and being denied by an erroneous offside flag against Nigeria.
The Manchester City forward is not expected to start the final match as coach Safet Susic looks to give others a chance.
That will be music to the ears of Queiroz, who has been preparing his players for a crucial day in their World Cup history in Salvador.
"My major concern is to keep players focused," he said. "And, they'll need to convert those chances."
If Iran can finally find the back of the net to win, and Nigeria lose, they would both finish with four points and there could be a lengthy process to sort out second place in the group.
Initially goal difference would decide it, but there is a small chance that a lottery would have to decide who finishes second.
If Iran win their match 1-0 and Nigeria lose to Argentina by the same score, they would end up level on points and with the same number of goals for and against.
Given the teams drew 0-0 in their game, the only way to decide who progresses would be to draw lots - something that has never been used at a World Cup.
Iran should not take it for granted that they will win their final game, though, as Susic is determined to end Bosnia's maiden appearance at a finals on a high.
"Our obligation is to go out with honour, to leave a good impression,'' the coach said. ''It is a pity for this generation that it exits the World Cup so soon.
"They ran, fought and created chances."
|Coach: S. Sušić|
for A. Hadžić 61'
for T. Sušić 79'
for E. Džeko 84'
|BREAKING NEWS: Blatter re-elected as FIFA president|
|BREAKING NEWS: FIFA elections set for second round of voting|
|Atsu wings in for Bournemouth campaign|
|Klopp: Pokal final not about me|
|Clement says Real goodbyes|
|Inter v Empoli: Icardi looking for final flourish|
|BREAKING NEWS: Blatter - I will fix FIFA|
|Northern Ireland v Qatar: O´Neill keen to prepare for Romania test|
|Palestine drop proposal for Israel suspension|
|Suarez will only get better, warns Iniesta|
|Martinez keen to recruit quickly|
|Monk keen to build on successful Swansea campaign|
|Fit-again Suarez set to aid Barca´s treble quest|
|Anonymous ´bomb´ threat received at FIFA Congress|
|Qatar organisers insist World Cup bid met ´highest ethical standards´|
|Wilkinson and Sorensen leave Stoke|
|Blatter: You can´t ask everyone to behave ethically just like that|
|Van Bronckhorst positive about Feyenoord future|
|Australian police to look into FFA-Warner dealings|
|Dardai signs Hertha deal|
|Protester interrupts FIFA Congress|
|Spurs complete Wimmer signing|
|Warner questions charges following release|
|Mexico v Guatemala: Herrera´s men kick off Copa preparations|
|New Zealand no longer supporting Blatter|
|´Post-World Cup trauma´ affected Mertesacker|
|Racing Club 0 Guarani 0 (0-1 agg): Draw sees Paraguayans through|
|Hamburg shocked by Karlsruher attack - Labbadia|
|Serie A Preview: Napoli, Lazio eye Champions League|
|Hodgson will not overstay England welcome|
|Scholes: United must keep Di Maria|
|Leyton Orient appoint Hendon|
|Benteke has a buy-out clause - Sherwood|
|US Soccer will support Prince Ali in FIFA election|
|Dynamo disappointed with officials after City friendly abandoned|
|Calls for Suarez appeal gather momentum|
|Eredvisie Review: Vitesse denied by late Uth goal, NAC Breda boost survival hopes|
|Rangers 1 Motherwell 3: McCall´s men facing uphill struggle|
|Hamburg 1 Karlsruher 1: Bundesliga side escape with draw|
|Blatter vows to lead FIFA clear of trouble as corruption scandal rolls on|
|Bundesliga: Bayern Munich season review - League crown not enough to signal successful campaign|
|Genoa forced to wait for UEFA licence|
|Injured Cardozo out of Paraguay squad|
|CONCACAF provisionally dismisses Webb and Li|
|Klopp: Career highlights of a charismatic coach|
|Verona v Juventus: Ogbonna seeks strong Champions League warm-up|
|FA charges Demetriou over betting breaches|
|Atalanta v Milan: Inzaghi faces last chance to prove worth|
|King joins Bournemouth as QPR rebuild begins|
|Plymouth part ways with Sheridan|
|Hernandez banned for three matches|
|Chelsea star Fabregas has nose surgery|
|Blatter: More bad news may follow|
|Galliani hopeful over Ancelotti deal|
|Frontzeck to continue as Hannover coach|
|Tremmel released as Tate waves goodbye to Swansea|
|Arsenal v Aston Villa: Sherwood out to upset holders|
|UEFA open to boycott of World Cup - Platini|
|Porto activate release clause for Casemiro|
|Athletic Bilbao v Barcelona: Catalans seeking second leg of treble|
|Auxerre v Paris Saint-Germain: History beckons for Ligue 1 champions|
|Cole confirms West Ham departure|
|UEFA elect not to boycott FIFA Congress|
|Borussia Dortmund v Wolfsburg: Klopp aiming for triumphant farewell|
|Flamini hails Coquelin impact at Arsenal|
|South Africa deny wrongdoing in World Cup bid|
|Benitez confirms Napoli exit|
|McShane among six released by Hull|
|Cerci committed to Milan|
|West Ham expect Collins to return for pre-season|
|Real deny Pogba bid|
|Important to keep Chelsea squad together - Mourinho|
|Alonso: Gerrard was magic|
|Pochettino silent on Ings speculation|
|Visa threatens to ´reassess´ sponsorship amid FIFA scandal|
|Blatter skips FIFA Medical Conference|
|MLS Preview: Revs not out for revenge against Galaxy|
|MLS Review: Sounders go top in West, Timbers and Galaxy win|
|AFC stands by Blatter|
|Matheus ´alright´ after collapse - Markevych|
|Copa Libertadores Review: River, Inter through to semis|
|Signing Toni a ´long shot´ for Adelaide|
|Ramsey good enough for Barca - Coleman|
|Bacuna pushing for Benteke stay|
|Evans stunner settles City friendly in Toronto|
|Banega: Emery a great coach|
|Emery tight-lipped on Sevilla future|
|Argentina finalise Copa America squad|
|Nike issues statement following arrest of FIFA officials|
|Hero Bacca grateful for Europa League triumph|
|Markevych rues defensive errors in Dnipro defeat|
|AFC Champions League Review: Naft Tehran fairytale continues|
|Emery: We deserved Europa League success|
|Dnipro 2 Sevilla 3: Bacca brace sees holders make history|
|South Africa 0 Malawi 0 (4-5 on penalties): Harawa heroics send Bafana Bafana out|
|CONCACAF and CONMEBOL respond to arrests in FIFA scandal|
|FIFA president Blatter welcomes investigations as corruption probe rocks world football|
|UEFA calls for FIFA elections to be postponed|
|BREAKING NEWS: Advocaat exits Sunderland and retires from club management|
|La Liga: Real Madrid season review - Ancelotti pays the price for disappointing season|
|Zambia 3 Ghana 0: First-half spree does the damage|
|Barnes suffers double knee ligament injury|
|Balotelli to stay at Liverpool - agent|
|Kane at the double in friendly win|
|Norwich make Dorrans switch permanent|
|Ings unsure of next move|
|Bournemouth snap up Federici|
|FIFA ´crisis´ cannot continue - Prince Ali|
|Barton headlines QPR exits|
|Juan demands more from Inter|
|Stoke snap up Haugaard|
|Subotic commits to Dortmund|
|Warner pleads innocence after US indictment|
|Napoli to refuse questions on Benitez´s future|
|USDoJ names indicted FIFA officials|
|Wenger coy over Vidal and Benzema moves|
|Suarez back in training ahead of Copa final|
|Pique: I´ll retire at Barca|
|Gerrard ´blown away´ by Liverpool send-off|
|FIFA ´very happy´ with Zurich arrests|
|Liverpool defender Toure targeting trophies|
|Ramsey eyeing title assault|
|Welbeck out of FA Cup final and England matches|
|FIFA the ´injured party´ as Swiss prosecutors open criminal proceedings|
|Prince Ali saddened by FIFA arrests|
|Pellegrini to make City defence a priority|
|Labbadia giving Lasogga, Olic, Jiracek time|
|Ramsey confident on Wembley chances|
|Swiss authorities confirm FIFA arrests|
|El Shaarawy open to Premier League move - agent|
|Reports: FIFA officials set to be arrested|
|Tigres UANL 2 Emelec 0 (2-1 agg): Mexicans through to Libertadores semis|
|Valencia ruled out of Copa America|
|Coleman: Bale being ignored by Real team-mates|
|Ruddy eyes England recall|
|Benteke will strike fear into Arsenal - Westwood|
|Howe named LMA Manager of the Year|
|Casillas reiterates desire to stay in Madrid|
|Dnipro players pay for fans´ tickets, transport|
|Galliani: I want Ancelotti back at Milan|