The former forward has backed the Hammers to return to winning ways.
The Hammers have struggled in recent weeks, without a win in their last four games, all of which they have drawn.
That continued on Sunday afternoon as a late, and controversial, penalty from Leonardo Ulloa saw Leicester City secure a 2-2 draw at the Kingpower Stadium.
The run of results have put Slaven Bilic’s sides’ hopes of finishing in the top four in jeopardy as they now sit seven points behind Manchester City and Arsenal in third and fourth.
Nicholas though has backed them to win on Wednesday and turn that current poor run of form around.
“Even though the top four has gone for them they still have a lot more incentive to win here than their visitors.”
“I know they've been getting the bad luck with the referees' calls but they always seem to get into a position where they can take advantage of others' slip-ups and they stumble. It's as if there's a mental block and that has hurt them.”
With the club also out of the FA Cup, it is something of a consolation that West Ham can now focus solely on the Premier League.
The top four may appear to be outside of their grasp at present, but given the unpredictable nature of the league this season it cannot be ruled out until it is mathematically impossible.
They will certainly need a change in their luck though, with a number of debatable decisions having gone against them in recent weeks.