 Complete the following phrase:  Dennis then persuaded the retired Niki Lauda to return to Formula One for the season and at the season opening South African Grand Prix the double World Champion lined up alongside Watson at the start of the season only after an F1 drivers strike was averted. By the end of the year both drivers had secured two victories and began with more success with Watsons win in Long Beach. No more victories followed that year but Lauda debuted the Porsche-powered MP4-1E interim chassis at that seasons 