Brittney Griner returned to the United States early on Friday (early today NZ time), nearly 10 months after the basketball star’s detention in Russia made her the most high-profile American jailed abroad and set off a political firestorm.

Griner’s status as an openly gay black woman, her prominence in women’s basketball and her imprisonment in a country where authorities have been hostile to the LBGTQ community heightened concerns for her and brought tremendous attention to the case. Russia’s invasion of Ukraine after her arrest complicated matters further.

The deal that saw Griner exchanged for notorious arms dealer Viktor Bout achieved a top goal for President Joe Biden. But the US failed to win freedom for another American, Paul Whelan, who has been jailed for nearly four years.

Asked if more such swaps could happen, Russian President Vladimir Putin said on Friday that “everything is possible”, noting that “compromises have been found” to clear the way for Thursday’s exchange.

Biden’s authorisation to release Bout, the Russian felon once nicknamed “the Merchant of Death”, underscored the heightened urgency that his administration faced to get Griner home, particularly after the recent resolution of her criminal case on drug charges and her subsequent transfer to a penal colony.

Griner, a two-time Olympic gold medalist and Phoenix Mercury pro basketball star, was seen getting off a plane that landed on Friday at Joint Base San Antonio-Lackland in Texas.

“So happy to have Brittney back on US soil. Welcome home BG!” tweeted Roger Carstens, the special presidential envoy for hostage affairs.

The WNBA star, who also played pro basketball in Russia, was arrested at Moscow’s Sheremetyevo Airport in February after Russian authorities said she was carrying vape canisters with cannabis oil. The US State Department declared Griner to be “wrongfully detained” — a charge that Russia has sharply rejected.

A graphic welcoming WNBA player Brittney Griner back to the United States, following her release in a prisoner swap with Russia, is shown on the scoreboard during an NBA basketball game between the Houston Rockets and the San Antonio Spurs on Thursday in San Antonio. Photo / AP

Griner pleaded guilty in July but still faced trial because admitting guilt in Russia’s judicial system does not automatically end a case. She was sentenced to nine years.

She acknowledged in court that she possessed canisters with cannabis oil but said she had no criminal intent and accidentally packed them. Her defence team presented written statements that she had been prescribed cannabis to treat pain.

The Russian Foreign Ministry confirmed Thursday’s swap, saying in a statement carried by Russian news agencies that the exchange took place in Abu Dhabi and Bout had been flown home.

Biden spoke by phone with Griner. US officials said she would be offered specialised medical services and counselling.

In releasing Bout, the US freed a former Soviet Army lieutenant colonel whom the Justice Department once described as one of the world’s most prolific arms dealers. He was arrested in Thailand in 2008 and extradited to the US in 2010.

Bout was serving a 25-year sentence on charges that he conspired to sell tens of millions of dollars in weapons that US officials said were to be used against Americans. - AP

WNBA star Brittney Griner deplanes at Kelly Field in San Antonio, Texas, on Friday after her release in a prisoner swap with Russia. Photo / AP]

- Lekan Oyekanmi and Eric Tucker, AP