Next up: Mancini is tracking Argentine ace Ansaldi
Sportsmail revealed Manchester City's interest last month and reports from Russia on Thursday night suggested a fee had been agreed between the clubs.
The Argentina international has been impressive in the ChampionsLeague as the Russian side have proved to be one of the surprisepackages of the competition this season.
Ansaldi, 23, has yet to agree personal terms but no problems are anticipated.
Ansaldi joined Rubin from South American side Newell's Old Boys two years ago.
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