Cameroon international Eto'o arrived in August 2011 for 28m, earning a reported 20.5m per year.
"Anzhi are not just Eto'o," warned Guidolin in his Press conference. "Anzhi are a team who want to become very important on the international stage and are among the strongest opponents we could've been drawn with in the Europa League.
"They play 4-2-3-1 or 4-4-2, but the more important aspect is that this is a side that can change during a match. They are dangerous."