Manchester United hope the popularity of Bulgarian striker Dimitar Berbatov who played for CSKA between 1998 and 2001 will open up the mobile phone market with a deal struck with Globul, Bulgaria's second largest mobile operator, controlled by Greek telecoms firm OTE.
United has signed a three-year sponsorship agreement with Globul.
"Under the agreement, Globul will offer the club's fans in Bulgaria access to exclusive Manchester United news, interviews, special features and other content over its mobile network," Globul said in the press release issued earlier in the week.
"Furthermore, Globul and Manchester United will jointly develop a promotional micro site in Bulgarian and English, specifically tailored for local supporters."
CSKA Sofia, the most successful Bulgarian club with 31 league titles, is also sponsored by Globul.