England have dropped to 13th in the latest Fifa world rankings after back-to-back home defeats to Chile and Germany.
An Alexis Sanchez double for the South American side, following by a sole Per Mertesacker header four days later, saw the Three Lions lose twice at Wembley in succession for the first time since 1977.
Meanwhile, Scotland have moved up two places to 33rd, but Republic of Ireland dropped seven places to 67th and Wales (56th) slipped 12 places, while Northern Ireland remain in 90th spot.
The most impressive rise was Portugal's, whose World Cup play-off triumph over Sweden has seen them rocket up nine places.
Cristiano Ronaldo scored four times over two legs to ensure that the Seleccao avoided missing out on next summer's tournament hosted in Brazil, who also climbed into the top 10 after dropping out in October.
Portugal and Brazil's rankings boost has caused Belgium (who lost to Colombia and Japan in November) to drop down from fifth to 11th.
Reigning world and European champions Spain remain unchallenged in first place, with Germany, Argentina and Colombia also holding steady in second, third and fourth respectively.
Uruguay's inter-continental World Cup play-off victory over Jordan has allowed them to stay sixth ahead of Italy, Switzerland and Netherlands.
Out of all the teams in the top 20, only Ukraine in 18th will not be present at World Cup 2014, with the group stage draw for the competition to be held on December 6 - which will use the October rankings for seeding.
The top-ranked African nation is Cote d'Ivoire (17th), USA are the highest-placed Concacaf nation (14th) and AFC's best entrant is Iran (45th).
Further down the rankings, Cuba were the biggest climbers (up to 47th from 74th) while Guyana suffered the biggest fall (down to 150th from 114th).