Santander International sponsors highly contested annual rugby match between the islands of Guernsey and Jersey.

The Santander International Siam Cup was held on 5 May 2018 at Footes Lane in Guernsey on a beautiful sunny day.
The Siam Cup is the second oldest rugby trophy in the world (2nd to the Calcutta cup) and its existence is steeped with an interesting and chequered history. It is the annual challenge trophy played for between Jersey Rugby Football Club and Guernsey Rugby Football Club at the end of the season and the venue alternates between the islands.
The Siam Cup is a large circular rose-bowl made from Siamese (Thai) silver. It is beautifully decorated in traditional Siamese style, with figures of dancing girls and elephant heads. It stands on an ebony base and is engraved with the cup winner's names, dating as far back as 1920. The original cup is now displayed at the World Rugby Museum at Twickenham Stadium and a replica that was made by renowned Guernsey jeweller, Bruce Russell, is the one used and kept in the trophy cabinet of the successful island.
Congratulations to the Guernsey players who won the 2018 Siam Cup, and also the equivalent competitions held at academy, women's and veterans level.