Javier "Chicharito" Hernandez's wife is demanding her estranged husband PAY UP, accusing the international soccer star of being a deadbeat dad who's not stepping up as a parent to his 2 ... this according to court docs obtained by TMZ Sports.
33-year-old Hernandez -- a member of the L.A. Galaxy -- is the MLS' leading scorer ... and one of Mexico's biggest soccer stars.
According to the docs, Sarah Kohan married Chicharito in 2019 and has 2 kids with him .