PLDC - Iran national football team will plunge down the FIFA world ranking to 36th place.
Team Melli lost to Tunisia on March 23 and edged past Algeria 2-1 four days later in two friendly matches.
Tunisia has made giant strides to move into it as the top African nation, rising nine places into 14th.
It is Tunisia's best-ever ranking by some way, surpassing its 19th position held in 1998.
Iran will stay as the best Asian team, followed by Australia, Japan and South Korea.
Germany remains top of the FIFA world ranking, followed by Brazil, Belgium, Portugal and Argentina.
The next FIFA world rankings will be published on April 12, 2018.
1- Germany
2- Brazil
3- Belgium
4- Portugal
5- Argentina
6- Switzerland
7- France
8- Spain
9- Chile
10- Poland
11- Peru
12- Denmark
13- England
14- Tunisia
15- Mexico
16- Colombia
17- Uruguay
18- Croatian
19- The Netherlands
20- Italy