Motor racing-Rossi to debut in place of Chilton in Belgium

Aug 21 (Reuters) - American Alexander Rossi will make his Formula One debut when he replaces Briton Max Chilton in the Marussia team's line-up for this weekend's Belgian Grand Prix. Rossi, 22, will race alongside Frenchman Jules Bianchi while contractual issues with Chilton are resolved, said a team statement on Thursday. (Editing by Martyn Herman)