 Complete the following phrase:  The mens doubles event at the 1992 Summer Olympics as part of the tennis program was held at the Vall dHebron complex on Montjuïc from 30 July to 7 August 1992. There were 30 pairs from 30 nations, with each nation limited to one pair two players. the Moroccan and Hungarian pairs did not start. The event was won by Boris Becker and Michael Stich of Germany, defeating South African team Wayne Ferreira and Piet Norval in the final. Officially, it was Germanys first medal and first victory in the event, though a German player had been part of a mixed team that won the 