Frank Lampard said Chelsea's capitulation to lose 2-3 at relegation threatened West Ham on Wednesday is a sign of how much work he still has to do to make the Blues title contenders once more. Chelsea were on course to move third in the Premier League when Willian's penalty gave them the lead. But the visitors did not learn from the reprieve they received from VAR when Tomas Soucek had a goal ruled out for offside as the Czech rose highest to level from another corner.

West Ham's Andriy Yarmolenko (left) celebrates his winner against Chelsea. pic/AFP