The Scout is tipping five players to produce big points in Gameweek 30 of Fantasy Premier League.
Four of Sarr's five Premier League goals have come in his five matches at Vicarage Road since the head coach's appointment, and he has created a further three there.
This highlights his growing influence on Watford’s attack since Pearson arrived in Gameweek 17.
Sarr has produced 20 shots in the penalty area and created seven big chances, both ranking him among the top six midfielders in FPL from that point onwards.
The Senegal international has achieved this despite missing three matches through injury.
The improvement in his numbers under Pearson is clear.
He recorded just nine shots in the penalty area and two big chances in the opening 16 Gameweeks.
A home encounter with Leicester City gives Sarr a chance to maintain his momentum at Vicarage Road.
The Foxes have struggled defensively in their recent road trips.
Brendan Rodgers' men have lost three and drawn one of their last five away matches in all competitions.
Sarr's influence at home means he could bring in more returns in Saturday's early kick-off.