South American is effectively left with just one delegate on Fifa's executive committee after Luis Bedoya quit as head of the Colombian football federation.
The South African candiate cannot afford any more lacklustre performances, if he is to been as a credible contender for the Fifa crown.
The man charged with enacting reform within football's governing body remains optimistic for the future.
If Fifa is serious about reform, then increased representation for women must be top of its agenda.
Amid speculation that his job is on the line, Jose Mourinho receives backing from former colleagues.
Infantino's entrance takes the number of candidates up to eight.
Today is the deadline for contenders to declare their candidacy for the Fifa presidency.
Numerous current and former Fifa officials are under investigation by the ethics committee.
Uefa president's Fifa campaign still alive, despite suspension from football.
Moya Dodd says Fifa faces unprecedented challenges.