Though it’s among the most expensive stadia ever and is being built in the largest naming rights’ market worldwide, new venue outside San Francisco doesn’t have prospects of getting sponsorship soon. But investors assure they’re just waiting for the right partner.

"We don't have anything in the pipeline," team spokesman Bob Lange told San Francisco Gate. But he quickly added, "It's not a necessity. ... A number of other stadiums have opened without a naming-rights partner."

That may be, but not every team is 49ers and not every stadium is the newest addition to NFL, also being among the world’s most expensive. And currently less than one out of three stadiums in the NFL doesn’t have a corporate sponsor, with American naming rights market reaching $25 billion, more than any other.

Looking at New York’s MetLife Stadium, a large deal may be reached even in a tough economy. The contract with MetLife is estimated at $400 million. But it’s also worth to keep in mind that the deal was signed a year after opening.

San Francisco 49ers also assure they’re waiting for the right partner, not for any at all. The club are hoping for $330 million, reportedly.