Raoul Savoy, the head coach of the Central African Republic, has claimed referee Louis Hakizimana was responsible for their 2-0 loss to Nigeria on Sunday.
The Swiss tactician saw his side earn a surprise 1-0 win over the Super Eagles last Thursday.
It was Nigeria’s first home defeat in a World Cup qualifier in 40 years.
Another victory in Douala would have seen the Central African Republic overtake Gernot Rohr’s at the top of Group C.
But Rangers defender Leon Balogun beat the offside trap to connect with a deep Chidozie Awaziem cross on the half-hour mark to volley home the opening goal for Nigeria in Douala.
And Napoli’s Victor Osimhen made it two-nil in first-half stoppage time, after good work from Watford defender William Troost-Ekong.
But coach Savoy insists the referee should not have allowed both goals to stand as the first was offside, and the second arrived after a foul on his goalkeeper.
“Nigeria played with 12 men because the referee helped them to win,” the Swiss tactician told the press after the encounter.
“The first goal was from an offside position, and my goalkeeper was fouled for the second goal.
“We did not concede against Nigeria over the two legs; they scored with the help of the referee.”
The CAR remained third in Group C after that loss, five points behind leaders Nigeria, with their hopes of making it to Qatar 2022 all but over.