US President Barack Obama will nominate Harvard economist Jeremy Stein and Jerome Powell, an investment banker and former Treasury official, to the two empty seats on the Federal Reserve's policy-setting board of governors.
Triple Olympic champion Usain Bolt could have an unexpected challenger when the Jamaican world record holder runs his first 100 metres on Saturday.
Olympic champion Usain Bolt clocked a season's best of 9.76 seconds to win the 100 metres at the Rome Golden Gala Diamond League meeting.