Fans packed into the Al Janoub stadium, a 40,000 seat venue made to resemble the sail of a dhow, or traditional wooden sailboat, to cheer on Qatari teams playing in the final of the Emir Cup, a local tournament for the country's club sides.
The inauguration comes as soccer's world governing body FIFA floats a plan to expand the next World Cup to 48 teams from 32, which could require a last-minute co-host despite a protracted dispute between Qatar and some of its neighbours, bans on alcohol and a lack of facilities restricting likely candidates.
Saudi Arabia, the United Arab Emirates, Bahrain and Egypt have imposed a political and trade boycott on Qatar since mid-2017, accusing it of supporting terrorism, which Doha denies.
That rift has strained efforts by FIFA President Gianni Infantino to push for a suitable Word Cup co-host even as qualifying matches begin early next month.
FIFA will host its annual congress in Paris on June 5, where it is expected to make a final call on the expansion, though any decision must be signed off by Qatar, the first Arab country to win hosting rights for the tournament in 2010.
The finals will start in November 2022, having been moved from the usual June-July slot to avoid the searing summer heat.
Al Janoub, a fully air-conditioned stadium which kept the temperature 10 degrees lower than the 29 Celsius outside, was called Al Wakrah after the city just south of Doha.
However, Qatar's Emir Sheikh Tamim bin Hamad al-Thani tweeted before the match that it was being renamed.
It is one of seven venues built from scratch for the 2022 World Cup, with an eighth stadium renovated and opened in 2017.
Qatar has pushed ahead with an ambitious scale-up of its infrastructure ahead of 2022 that includes $6-8 billion on stadiums and sporting facilities, part of efforts to use the tournament to diversify its energy economy and project itself on to the world stage through sport.
(Reporting by Eric Knecht; Editing by Ken Ferris)
