Pearson will no doubt realise the importance of a win tomorrow evening after hearing of weekend wins for all of their promotion rivals.
And, whilst the Foxes now have two games in hand over the teams above them, news of wins for leaders Cardiff City, Hull City, Watford and Crystal Palace will have been unwelcome at Filbert Way and the pressure will be on the side tomorrow to resurrect their promotion campaign.
Indeed, the visit of Chris Powell's Addicks will provide the platform for the Foxes as they look to bounce back after their run of five straight league wins came to an end last time out against basement side Peterborough United.
The Foxes faithful will be hoping that unpopular Frenchman Yann Kermorgant will have an unhappy return to the King Power Stadium - especially after it was his strike which secured the win for Charlton when these teams met at The Valley earlier in the season.
The striker says he looks forward to returning to the side which gave him his first taste of English football - we can only hope that he leaves with a bitter taste of defeat come Tuesday night.