Google doesn't have too many sports-related features (there's a sports section at Google News and that's about it). The small OneBoxes are the perfect place for displaying live scores or information about teams and players, like you see in Live Search.
Google launched today a special feature for the Twenty20 World Championship of cricket. Search for cricket, cricket [Country] to see the latest scores and a list of current matches.
In true Google spirit, the OneBox links to three sources of information, some of the best sites about cricket, but it's interesting to see that the links contain oi=prbx, the same value used for the Bourne Ultimatum promotion. "Prbx" probably means "promotion box" and that doesn't look very good for Google.
{ via Google Blog }
Update: There's also a rugby OneBox, for the Rugby World Cup: