And they may well need all of Martinez’s gamesmanship tactics if they are to take anything away from the Etihad.
The Argentina keeper hit the headlines during the World Cup when his confrontational approach helped his country to beat France on penalties in the final.
Last season, he managed something similar against Manchester United when he dared Cristiano Ronaldo to take a spot kick, before Bruno Fernandes stepped up and missed.
After taking charge at Villa Park, Emery insisted he would have a word with Martinez about his antics after he goaded France’s Kylian Mbappe by holding a baby doll with the star’s face on it during Argentina’s World Cup victory parade.
The former Arsenal boss said: “I want to speak with him when he will come here next week but I am thinking more about his performance and his win, than his celebration.
“The celebration is for the supporters, with really big emotions. It’s not really a good moment as a coach to identify why.
“I prefer to be focused on how he performed and how he is going to win with us afterwards. I am going to speak with him because I want to control him about that as well – his emotions.
“We have to have values, we have to focus on behaviour when we are together and with the opposition players.
“We can speak in 90 per cent of the cases about very good things, and be very proud of him, for his performance, for his win. It is about more than small details like celebrations.”