Platini: CSKA Sofia make U-turn on foreigners
In June, CSKA said they would offload all the foreigners on their books but judging by their activity on the final day of the transfer window the idea has been forgotten.
Platini, namesake of the UEFA president, was one of the Bulgarian league's revelations last season, scoring a series of spectacular goals for Chernomorets Burgas. He joins on a contract running until June 30, 2012.
CSKA also signed Paraguayan defender Hugo Baez, 26, and his midfield compatriot Jonathan Gomez, 24, after successful trials.
The Reds are top of the league after winning their first four league matches without conceding a goal.