 Complete the following phrase:  Throughout the 2017 MLS season, Frei confirmed himself as one of the leagues best goalkeepers once again: he started 33 games throughout the regular season, making 84 saves over the course of the year for a 69.4 per cent save percentage, and averaging 1.09 goals against per game, while also managing to keep 13 clean sheets, more than any other goalkeeper. In the Playoffs, Frei only made four saves en route to the MLS Cup final, but kept four consecutive clean sheets, as Seattle reached the final without conceding a goal. On 9 December 2017, he started in the 