The pair were speaking at a ceremony in Moscow to mark the start of a volunteer recruitment campaign, which will aim to hire 15,000 for the World Cup and 5,000 for the 2017 Confederations Cup.

Their show of confidence comes despite Russian Sports Minister Vitaly Mutko, a member of FIFA’s ruling Council, suggesting last month that work at the Samara Stadium had completely ground to a halt due to a financial dispute with the construction company.

A statement from Russia 2018 confirmed they were looking to replace the contractor, PSO Kazan, as a result of the issue, with organisers insisting the venue would be ready in time to host the tournament.

Building work at the Kaliningrad Stadium has also hit a stumbling block, with concerns about the suitability of the land surrounding the venue.

Nine of the 12 stadiums for the tournament have significant construction work remaining, however, Putin says preparations are on schedule. 

"Preparation for the World Cup is in full swing," he said.

"All of the developers promise - and are confident - that they will comply with the commitments to finish facilities on time."

Infantino claimed Russia was on schedule for the tournament despite the country’s economy shrinking by 3.7 per cent in 2015 amid pressure from low oil prices and sanctions from the European Union and the United States following the country's annexation of Crimea in 2014.

"We’ve received all the guarantees that the work will be delivered as promised,” said the Swiss, adding that the World Cup will "boost the economy". 

Infantino, elected President of football's world governing body in February, also said the repeated doping scandals surrounding Russia does not affect the country’s reputation or the quality of preparations for the World Cup. 

"From what I can see, everything is done with respect by Russia to move ahead in the right way," he said on his second official visit to Russia in his current capacity.

"As far as FIFA is concerned, we have our doping programmes, they are very strict and very firm and they apply whatever."

Preparations for Russia 2018 suffered a further blow in April when the delivery date of the Fisht Olympic Stadium in Sochi was pushed back by five months.

The venue which will have a capacity of over 47,000 for the competition, is also scheduled to stage matches at next year’s Confederations Cup - an eight-team tournament comprised of the host nation, the current World Cup holders plus the six continental champions.

There had also been suggestions that matches at the Confederations Cup may be taken away from St Petersburg, due to be the main hub of the World Cup warm-up event, because of construction concerns.

The city’s lawmakers have now increased the budget for the stadium by 4.3 billion rubles (£44.6 million/$64.4 million/€57.5 million).

Plans for the venue have constantly been altered since building work began in 2007.

It is due to have a capacity of 69,000 and feature a retractable roof and removable football pitch, according to organisers.

"For FIFA, the main thing is the readiness of the stadium," Alexey Sorokin, head of the Russia 2018 Organising Committee, said.

"It will be ready at the end of the year."

The ceremony marking the start of the volunteer recruitment campaign was attended by Mutko and Sorokin, as well as Moscow Mayor Sergei Sobyanin, 2010 World Cup winner Carles Puyol of Spain, and several other Russian officials, celebrities and footballers.

Those wishing to become volunteers at the 2018 World Cup and the 2017 Confederations Cup can apply by clicking here.