 Complete the following phrase:  In his first two full seasons at Liverpool, Klopp almost exclusively employed a 433 formation, utilising a front three of wingers Mohamed Salah and Sadio Mané surrounding false-9 Roberto Firmino, supported by Philippe Coutinho in midfield. The foursome earned the moniker of the Fab Four as they supplied the majority of the teams goals over this period of time. Roberto Firminos exceptionally high number of tackles for a striker under Klopps management encapsulates his style of play, demanding a high-press from all his players and having his striker defend from the front. Following Coutinhos departure in January 2018, the remaining front three increased their attacking output and continued to create chances as Salah won the Premier League Golden Boot in 2018, before sharing the award with his team-mate, Mané, in 2019. In the early part of the 201819 season Klopp, at times, utilised the 4231 formation, which he had previously used at Dortmund. While this was partially to account for a number of injuries to key players, it also allowed Klopp to accommodate new signing Xherdan Shaqiri, playing Roberto Firmino in a more creative role and allowing Salah to play in a more central offensive position. However, for the remainder of the season, the 433 formation, as with the previous two seasons, became Klopps preferred setup as his side finished as runners-up in the Premier League and reached a second consecutive 