 Complete the following phrase:  In January 1957, Collins married American actress Louise King, daughter of the executive assistant to UN Secretary General Dag Hammarskjöld, and the couple took up residence on a yacht in Monaco harbour. In the same year, Collins was joined at Ferrari by Hawthorn. The two became very close friends, even arranging to split their winnings between each other, and together engaged in a fierce rivalry with fellow Ferrari driver Luigi Musso. However, despite a third-place finish at the 