Though unofficial, this information seems very credible as a labour union reveals official groundbreaking date of the world's second most expensive stadium in history.

Though we're still waiting for confirmation from the Raiders, it seems that groundbreaking for their new stadium is set for November 13. That's the date presented on an official invitation sent the Laborers Union Local 872.

The union's spokesman said he expects the groundbreaking formally will be announced by the team at the Stadium Authority’s monthly meeting on Nov. 9. Other sources have already suggested the date would be between Nov 9 and 16, which makes the indicated one more realistic.

Raiders' new $1.9-billion stadium was already scheduled for construction since December 2017, which means the actual date is close either way, even if Nov 13 isn't confirmed eventually. The time frame requires works to start by year end in order for Raiders to move to the building by 2020.

Shiny black stadium designed by Manica Architects will be the world's second most expensive when built, losing only to the one currently under construction in Inglewood. It will host a transparent dome over the field, while turf itself will be able to slide outside.