West Ham United play host to Chelsea this weekend, and Paul Merson has made a two-goal prediction for the game. Paul Merson makes his Premier League predictions every week, and he really went in depth for the big London derby between West Ham and Chelsea in two day’s time. Julen Lopetegui has provided a big injury update ahead of the West Ham vs Chelsea Premier League clash on Saturday, suggesting that Emerson Palmieri faces a late fitness test. Chelsea have their own injury problems as well, so it remains to be seen which starting lineups the two managers go with. The Hammers have taken four …