Ashkan Dejagah cannot help but chuckle at the similarities. A team forlorn, enduring a trauma of a season under three different managers, has summoned the last, Felix Magath, in desperation with disaster looming large. His is a near-impossible task, with an established member of the elite teetering on the brink and four games left to define a campaign. "Only it was actually a much worse situation back then," says the winger. "We had no momentum, and had forgotten how to win. But we still did it. Felix still did it."

For Fulham in the three weeks ahead, read VfL Wolfsburg three years ago. Bundesliga champions in 2009 with Magath in charge, Die Wölfe had stumbled under Steve McClaren and plunged further over the brief interim stewardship of Pierre Littbarski. They were last but one in the division when Magath was rehired in mid-March, two days after his sacking at struggling Schalke, but none of his first four matches were won and Wolfsburg were left pinning hopes on the run-in. Then came the revival. Three of those last four games were won, a nine-point haul enough to hold off a resurgent Borussia Mönchengladbach.

Dejagah witnessed that upsurge first-hand as a member of Magath's side, a player flung on from the bench at Hoffenheim on the final day with the scores level and everything in the balance, before Mario Mandzukic and Grafite completed the visitors' scoring.

These days the Iranian and the man once nicknamed "the Torturer" by his overworked players are reunited, the former's role again often one of impact substitute – largely owing to a niggling groin injury – and with the last batch of fixtures critical: Tottenham Hotspur away , then Hull, Stoke and Crystal Palace. After Martin Jol and René Meulensteen, it is up to Magath to inspire the recovery. "And winning the last two games has given us the belief and confidence," Dejagah says. "Fulham has to play in the Premier League and Felix Magath is the right manager to achieve that. A good appointment, a good option.

"Back home in Germany he is a big name, a manager who has won championships with Bayern Munich and Wolfsburg, a man with a reputation. He has the ability to relax people, to get them focused. He knows when the time is to work, or to make 'funnies'. He recognises the balance needed, and it's important to have someone who has been through this before. At Wolfsburg we needed a win on the last day [to avoid a relegation play-off] and he saw us through it. He speaks a lot to his players, reassures them, reminds us what our jobs are. The most difficult thing in this situation is the pressure, what happens in here [he taps his head], but he releases that just by talking to us. We believed before the Norwich game, and after the game we believed even more. We won at Tottenham last season, so we have a chance."

Dejagah's attitude is almost matter of fact, that of a player who has seen this before and will endure the drama in the unswerving belief his team will emerge triumphant. Pressure might eat away at others but this is a 27-year-old who has endured much over a career that has taken in three clubs and two national setups, his allegiances inked on his body: his right forearm sports the word "Teheran", the German spelling of the city where he was born in 1986; his left arm "Berlin", where he grew up and played for Hertha. His neck is tattooed with the mantra: "Never forget where you're from".

He had been capped from junior to under-21 level by Germany, winning the 2009 European Championship after moving to Wolfsburg, before his club career endured a lull, his progress checked by injury, and a wave of younger players leapfrogged him in the pecking order.

"Germany had a lot coming through, a new generation, so that was a hard situation for me but I'd always had the option to play for Iran. Both my parents are Iranian. My wife, like me, is Iranian but brought up in Germany, so we all spoke and I followed my heart. I was born in Tehran. I have a lot of family there. I still count Iran and Germany as 'my countries', but I'm proud to represent Iran: a beautiful country whose fans love football.

Sometimes people – team-mates, friends – ask me: 'How is it there?' I can just say it's a nice country with nice people. Other things, I don't want to speak about. Other things … I go there to play football, to see my family, to represent my country. That is what I know. I'm proud to play for Iran but a lot of people see just the negatives, the things that are reported in the news. That's why they're scared a bit about Iran. I can just say the Iranian people are very nice, and it's my country."

That represents the extent to which Dejagah is prepared to dip into politics, his caution an acknowledgement Iran – where he established his career – is still considered a pariah state by the west. His reticence is understandable. It is seven years since he pulled out of a trip to Tel Aviv with Germany's Under-21s, a decision accepted by the coaching hierarchy and born of concern at potential reprisals on his family in Iran, whose government have not recognised Israel since the 1979 December Revolution.

Iranian athletes have invented mysterious ailments to swerve similar dilemmas over the years, with Dejagah guilty most obviously of being too honest. Yet his withdrawal drew stinging criticism from Germany's Central Council of Jews and politicians in his adopted country. Recollection prompts a shudder of apprehension. "This was a long time ago," he says. "It is in the past. Yes, it helped me grow up but now I only look to the future."

That future, beyond the culmination of the English domestic season, is a World Cup in Brazil where Iran, ranked 37 by Fifa and under Carlos Queiroz's stewardship, will attempt to unsettle Argentina, the Africa Cup of Nations champions Nigeria and the newcomers, Bosnia and Herzegovina. "Team Melli" have added talent from the Iranian diaspora to their squad – Dejagah, Daniel Davari, Reza Ghoochannejhad and Steven Beitashour, born in San Jose, California and currently with Vancouver Whitecaps – with Queiroz having called in his contacts to secure friendlies with Belarus, Montenegro and Angola as preparation next month.

"I know it's not easy to take friendly games with Iran but Queiroz has experience," says Dejagah, who scored twice on debut against Qatar. "That's why he can arrange these games. It's an unbelievable thing for Iran, to be in Brazil. "The whole country is proud, even if we felt obliged to qualify. We had 100,000 people in the national stadium screaming for us, and we are the second best team in Asia after Japan. But at the tournament itself, no pressure. We can go there and just play. If we get into the next round, it'll be the first time for Iran. Argentina will go through as group winners, but against Nigeria and Bosnia we have a chance. Why not? We have a talented team.

"I know there are not as many Iranians playing in 'big' leagues now, particularly in the Bundesliga. There is Reza [at Charlton] also here but it's hard for our younger players to make names for themselves. I was luckier, growing up in Germany, but not many scouts go to Iran to watch games. Maybe they come from teams in Dubai or Qatar but you need a lot of luck to be spotted and given an opportunity by a European team. That's why I hope, in this World Cup, our players show the world how good they are."

Until that pool of talent is tapped, Dejagah is a lonely ambassador for his country, a cult figure at Craven Cottage and an émigré with survival on his mind. "If we stay up with Felix Magath in charge of us, Fulham will surprise a few teams with what we might achieve. Look at Wolfsburg: after that fight against relegation, we almost qualified for Europe the following season." The German club finished eighth, four points off the Europa League qualification places. Magath, and Dejagah, are hoping history repeats itself.

Ashkan Dejagah was speaking at an event for Marathonbet, main sponsor of Fulham. The new Marathonbet app is available to download in the app store and at marathonbet.co.uk/mobile