Roger Palmgren has quit as Namibia coach after receiving unspecified threats, the country's football association said on Monday.
"Palmgren tendered his resignation due to serious threats directed toward him and his family," a national football association statement said.
The Swede's resignation comes just 48 hours before the 'Brave Warriors' host Group F leaders Nigeria in a must-win 2014 World Cup qualifier.
Namibia have to collect maximum points at Sam Nujoma Stadium Wednesday to keep alive slim hopes of making the 10-nation final elimination round.
Former Sierra Leone and Rwanda coach Palmgren, 50, took over only last month and his first competitive outing was a 0-0 World Cup qualifying draw in Malawi.
National team assistant coaches Ricardo Mannetti and Ronnie Kanalelo have been put in charge for the Nigeria game.