West Ham go to Brentford in the Premier League on Saturday afternoon after putting the finishing touches to their preparations at Rush Green on Friday. Pressure is already mounting at an alarming rate on West Ham boss Julen Lopetegui. After heavy defeats to Chelsea and Liverpool in the last week, Brentford away flips the script for the Hammers. No game in the Premier League is ever easy. But this is now a game West Ham are expected to win. Justifiable excuses have been wheeled out by Lopetegui about West Ham’s tough fixture list so far. Brentford is a winnable game for West Ham, though, home o…