 Complete the following phrase:  Klopps side finished fourth in the 201718 Premier League, securing qualification for the Champions League for a second consecutive season. Along with the emergence of Andrew Robertson and Trent Alexander-Arnold as regular starters at fullback, Virgil van Dijk and Dejan Lovren built a strong partnership at the heart of Liverpools defence, with the Dutchman being credited for improving Liverpools previous defensive issues. Klopp guided Liverpool to their first UEFA Champions League final since 2007 in 2018 after a 51 aggregate quarter-final win against eventual Premier League champions, Manchester City and a 76 aggregate win over Roma in the semi-final. However, Liverpool went on to lose in the 