France's Finance Minister Christine Lagarde (L) shakes hands with Guinea-Bissau's Economy Minister Helena Embalo during the annual meeting of African Development Bank in Lisbon June 10, 2011. Lagarde, favourite to take the IMF's top job, could face a late challenge after a report that South Africa's Trevor Manuel will enter the race as the window for bids closes. REUTERS/Rafael Marchante (PORTUGAL - Tags: POLITICS BUSINESS)