Eto'o is set to join Anzhi on a permanent transfer after two seasons with the Italian giants.
"Anzhi executives should arrive in Milan tonight or tomorrow morning," said Eto'o's agent Claudio Vigorelli to Gazzetta dello Sport on Monday. "They will meet with Inter.
"They need to reach an agreement with Inter as they have already reached a deal with us (the player)."
The Cameroon international will pen a three-year contract with the Russian outfit and will become the world's best-paid player, earning a reported 30million euros (£26.2million) a year.
"Eto'o is in Milan awaiting developments," said Vigorelli. "The deal is set to be completed and we shall see in the next few hours.
"I don't foresee any hurdles."