God and his older brother featured for Denmark in 1998.So Eden and Thorgan Hazard are both in the WC squad. Has that ever happened before? Two brothers playing a soccer WC for a country?
de Boer twins for the Dutch in 1998.
Robert and Niko Kovac for Croatia in 1998.
Bonaventure and Salomon Kalou for Côte d'Ivoire in 2006.
Pretty sure the Dutch side of the 70s had a set of brothers.
2010 also saw a pair of brothers face each other in the group stages - Jêrome Boateng for Germany, Kevin-Prince Boateng for Ghana.