Team GB chief Andy Hunt said there are "no plastic Brits" in the British team after it emerged Ukraine-born Olga Butkevych is likely to be the host's sole wrestler at London 2012.
Butkevych was among a group of Eastern European athletes brought over to train with the GB squad in 2007.
The 26-year-old has been competing for Britain for five years but only recently received a British passport.
"To be clear, there are no plastic Brits," Hunt told BBC Sport.
"Everyone who will compete for Team GB has a British passport and has fulfilled all the eligibility criteria and I'm totally satisfied around that."
"We haven't lowered the bar, I would say we've broadened the bar to allow them to have one wrestler competing in London.
"That's important because that wrestler, had they had the opportunity to compete in the qualifying tournaments for GB, is likely to have qualified."
On Tuesday, British Wrestling was rocked by the news it was losing two of the host-nation berths provisionally awarded by the British Olympic Association (BOA) in April last year.
The Olympic Qualification Standards (OQS) panel, which included Hunt and fellow Team GB leader Sir Clive Woodward, ruled that British Wrestling would only be allowed to send one athlete.
That one wrestler will come from the female -55kg division in which Butkevych won Olympic test event silver at London's ExCel Centre last year.
International competitions, such as the World Championships, allow countries to enter two athletes who do not hold passports for that nation.