Oakland Stadium Black Hole

RingCentral Coliseum is a multi-purpose stadium in Oakland, California, United States, which is home to the Oakland Athletics of Major League Baseball (MLB) and the Oakland Raiders of the National Football League (NFL). The stadium, historically and generically known as the Oakland–Alameda County Coliseum (or Oakland Coliseum for short), opened in 1966 and is the only remaining stadium in the United States that is shared by professional football and baseball teams. The Coliseum was also home to some games of the San Jose Earthquakes of Major League Soccer in 2008–2009 and hosted games at the 2009 CONCACAF Gold Cup. The Oakland–Alameda County Coliseum complex consists of the stadium and the neighboring Oakland Arena.