NEW YORK (Reuters) - U.S. short-term interest rates futures rose to contract highs in early U.S. trading on Friday after Britons voted to leave the European Union, spurring traders to expect the Federal Reserve may cut interest rates to help shield the economy from any global fallout.

Federal funds futures implied traders priced in a 10 percent chance the U.S. central bank may reduce key U.S. rates at its July 25-26 policy meeting. That later slipped to 4 percent <FFN6>, according to Reuters data.

(Reporting by Richard Leong; Editing by Kim Coghill)