 Complete the following phrase:  The season was the first time that two four-time World Champions, Hamilton and Vettel, would be competing for a fifth title and was billed as the Fight for Five by journalists and fans. Hamilton started the season by taking a record seventh pole position in Melbourne, but finished second behind Vettel, who used a timely virtual safety car period triggered by the stricken Haas of Romain Grosjean to pass Hamilton before successfully defending the position until the finish. After finishing on the podium in Bahrain and finishing fourth in Shanghai, Hamilton won his first race of the season in 