Karim Ansarifard is confident Iran will beat Portugal to qualify for the next round of the World Cup ahead of Monday's winner-takes-all Group B clash.
Iran are third and only a point adrift of European champions Portugal and Spain leading in to the third and final matchday in Saransk.
Carlos Quieroz's men were unfortunate not to at least claim a point against Spain on Wednesday, having an equaliser ruled out by VAR.
It was an impressive performance against the 2010 world champions and Olympiacos forward Ansarifard said Iran are ready to advance to the last 16 for the first time in their history.
"We've learned so many things from the previous World Cup and know how to play Portugal in this edition," Ansarifard said.
"Iran is led by the best coach in the world and he has taught us how to fight against our opponents. He has helped us a lot and we are ready to defeat Portugal in our last group match."
Ansarifard added: "After conceding the goal against Spain, we created so many chances. We did our best but I think we were not lucky at the end of the match. We will fight for our pride in the match against Portugal.
"Our strategy against Spain was to defend and we wanted to find the back of their net through the counter attack. We also created some scoring chances but lacked the cutting edge. Portugal have many stars but we can defeat them as a team."
Foco total no jogo com o Irão. #ConquistaOSonho— Portugal (@selecaoportugal) June 22, 2018
Regista-te no clube de fãs da Seleção e descobre todos os dias mais fotos e conteúdos exclusivos da equipa: https://t.co/8aJKQNXIWQ pic.twitter.com/plHAWCYOfF
The key to Iran securing qualification will be stopping Portugal captain and five-time Ballon d'Or winner Cristiano Ronaldo.
Ronaldo has scored four goals in two games following a hat-trick in the opening match against Spain, which was followed by the winner in a 1-0 victory over Morocco.
Having played their part in a thrilling 3-3 draw with Spain, Portugal were unconvincing as they eliminated Morocco.
Portugal defender Jose Fonte said: "We have the ability to do well, we believe in our work and we have made a pretty good start to this competition but there is room to improve."
PLAYERS TO WATCH
Iran – Sardar Azmoun
Based in Russia, Sardar Azmoun could make a big impact against Fernando Santos' Portugal. Rubin Kazan forward Azmoun has not scored at the World Cup so far but with 23 goals in 35 international appearances, it is only a matter of time.
Portugal – Cristiano Ronaldo
It really is hard to look beyond Cristiano Ronaldo, especially when he is in this kind of form. The 33-year-old has shown no signs of slowing down, taking his international tally to 85 goals against Morocco. Ronaldo has scored Portugal's last five goals at the World Cup – the last player to do so for their nation was Russia's Oleg Salenko with six in a row in 1994.
KEY OPTA STATS
- This is Iran and Portugal's second encounter at the World Cup after 2006. Portugal won 2-0 thanks to goals from Deco and Cristiano Ronaldo – it was Ronaldo's first ever goal in the tournament.
- Portugal have won three of their four World Cup games against Asian opposition, losing against host nation South Korea in 2002.
- Iran are winless in seven World Cup meetings against European sides (D1 L6), with that draw coming against Scotland in 1978.
- Portugal's 1-0 win over Morocco last time out was their first World Cup clean sheet since a goalless draw with Brazil in 2010, ending a run of five matches without a shutout.
- Iran have never won their final game of the World Cup group stages (D1 L3), scoring three and conceding 10 in these matches.
- Should he feature in this match, Joao Moutinho will make his 113th appearance for Portugal, overtaking Nani (112) to become the third most capped player in the country's history, behind only Cristiano Ronaldo (152 before this game) and Luis Figo (127).
|We figured it out - 76ers´ Markelle Fultz rebuilds jump shot|
|Joshua: Povetkin my second-toughest fight|
|Relaxed Pochettino not pushing panic button|
|Why Manchester City fans must fix their relationship with the Champions League|
|Majestic Giorgi ends Wozniacki´s reign in Tokyo|
|Pochettino unwilling to risk Alli fitness|
|Bigger Champions League tests to come, warns Pogba|
|Eight for 10! - Nadeem spins his way to world-record figures|
|A 4-1 lead cut to 3-2 by VAR, but Quakes have no complaints after Atlanta defeat|
|UEFA opens disciplinary proceedings against Ronaldo|
|Joshua v Povetkin: Recapping AJ´s previous world title defences|
|Players told to ink twice over showing tattoos at Rugby World Cup in Japan|
|Mariano targeting Spain call-up after goalscoring Madrid return|
|Pandya, Axar and Thakur out of Asia Cup|
|England omit Cipriani, Tuilagi and Ashton called up|
|Can reacts to Ronaldo´s red card: We are not women|
|One Year to Go: Five Rugby World Cup debutants set to shine|
|Shy Osaka not comfortable with new-found fame|
|Belgium and World Cup winners France make FIFA rankings history|
|Ronaldo wanted to impress - Bernardeschi sympathises after Juve superstar´s red|
|Van Dijk warns Liverpool: Believe we can win trophies or stay home|
|Menezes complains of anti-Brazilian conspiracy after Dede´s VAR red|
|Diamondbacks rout Cubs to remain in postseason picture|
|Modric embraces Ballon d´Or chants as Di Francesco backs Madrid star for award|
|MLS Review: Martinez helps Atlanta stage comeback amid VAR controversy|
|Kerevi recommits to Wallabies, Reds|
|Lyon to ban fan for life after footage of Nazi salute emerges|
|Milan must respect opponents – Gattuso not underestimating Dudelange|
|Copa Libertadores Review: Zarate leads Boca, River draw|
|Mourinho: Dalot can play at Man United for more than 10 years|
|Johnson hoping to erase East Lake demons|
|´No question´ Fitzgerald faces Bears, says Cardinals´ Wilks|
|Rodgers says roughing the passer penalties are ´going the wrong direction´|
|Ravens fined $200,000 for violating communication policy|
|LeBron James set to star in ´Space Jam´ sequel|
|Ronaldo red card ´absurd´, says Pjanic|
|Kovac hails ´special´ Sanches after Bayern goal|
|Marcelino: Tearful Ronaldo said he did nothing wrong|
|Fernandinho takes blame for Man City´s Lyon loss|
|Lovren denies any wrongdoing after perjury charge|
|Plzen boss Vrba slams late mistakes|
|I almost scored as many as Messi - Tagliafico the unlikely hero for Ajax|
|Ronaldo deserves Ballon d´Or not Modric, says Casemiro|
|United fan Rafael - I´ve never lost at City|
|Davis explains abrupt mid-game NFL retirement: ´Football is not for me´|
|Lopes pays tribute to under-fire Lyon coach Genesio|
|Toulon´s Bastareaud handed five-week ban|
|Steelers WR Brown disciplined for missing meeting|
|Arteta refuses to make excuses for Manchester City´s Lyon loss|
|Allegri calls for VAR after Ronaldo´s contentious red card|
|Championship Review: Boro go second, Birmingham still winless|
|Lopetegui: Mariano took his chance|
|Juventus proved their quality after Ronaldo red card - Bonucci|
|Pogba ´class´ impresses Mourinho|
|Man City not Champions League favourites, insists Bernardo Silva|
|Isco calls for Modric to win Ballon d´Or after Champions League win|
|Wawrinka into last eight in St Petersburg|
|Goal hero Pogba is one of the best in the world - Shaw|
|Sane SOS can´t salvage sorry City display|
|Hoffenheim will learn lessons from Shakhtar draw, insists Nagelsmann|
|Valencia 0 Juventus 2: Pjanic hits the spot after Ronaldo sees red|
|Viktoria Plzen 2 CSKA Moscow 2: Krmencik heroics undone by late show|
|Benfica 0 Bayern Munich 2: Sanches returns to haunt his former club|
|Young Boys 0 Manchester United 3: Pogba double inspires Red Devils|
|Manchester City 1 Lyon 2: Cornet and Fekir stun Champions League favourites at home|
|Real Madrid 3 Roma 0: Isco stunner sets up winning start for Champions League holders|
|Ronaldo sent off on Champions League debut for Juve and may miss United reunion|
|Shakhtar Donetsk 2 Hoffenheim 2: Maycon denies Nagelsmann´s side|
|Ajax 3 AEK Athens 0: Tagliafico at the double in opening win|
|Dalot makes debut, Martial starts for Manchester United|