ENZO MARESCA is ill. And the fans and bosses at Chelsea seem to be getting sick of him, too. Before Christmas, Maresca was being touted as a potential replacement for Pep Guardiola at Manchester City. Sign up for the Chelsea newsletter Thank you! Enzo Maresca could be sacked before the end of the season if Chelsea’s results do not improveCredit: EPA Yet Guardiola’s former assistant will return to the Etihad on Sunday amid huge doubts about how long he will stay in his current job. Maresca declared himself too poorly to explain to the media after the 2-2 draw with Bournemouth why the Blues had yet again dropped points from a winning position at home.