#3 Alvaro Morata (Chelsea)
During the 2017-18 summer transfer window, Romelu Lukaku was destined for a Stamford Bridge return, with Morata on his way to the Theatre of Dreams. But with Manchester United hijacking a move for Lukaku, Chelsea ended up with a deal for Morata.
At the start of the season, Morata started off the season in spectacular fashion, but as the season progressed, he went through a rough patch, finishing the season with 11 goals and 6 assists in 31 appearances in the league.
Under Sarri, this season he hasn't gotten any better, only scoring a solitary goal in 4 appearances thus far. Morata really needs to step his game and find the form where he scored 15 goals and assisted a further 5 in 26 league appearances.