Sergio Aguero to return to action for Man City after calf injury Comeback...Manchester City's Sergio Aguero celebrates his goal during the English League Cup quarterfinal soccer match between Arsenal and Manchester City in London in November. Argentine striker Sergio Aguero is poised to return to action after being named in the Manchester City squad for today's FA Cup third-round replay at home to Blackburn Rovers. City's top scorer this season with 19 goals, Aguero has been sidelind by a calf injury since his side's 6-3 demolition of Arsenal in the Premier League on December 14. "Sergio is working with normality with the whole squad and he is on the squad list for tomorrow," said City manager Manuel Pellegrini. He is a very important player for us. It doesn't matter if we are scoring a lot of goals, Sergio will always be a very important player and we are happy he is coming back. Aguero's return coincides with the news that midfielder Samir Nasri will be out for around eight weeks after damaging knee ligaments in Sunday's 2-0 win at Newcastle United. "He is a very important player for us," Pellegrini said of the Frenchman. He was also playing in a very good moment so we hope he can come back as soon as possible, but I think less than six or seven weeks will be difficult. Aguero sent a message of support to his stricken team-mate on Twitter, writing: "All my strength goes to @SamNasri19! Eight weeks will fly by, tho we need you in the team. You'll come back better than ever! Pellegrini also disclosed that midfielders Yaya Toure and David Silva will miss the match against Blackburn at the Etihad Stadium with minor injuries. Meanwhile, City have announced that 21-year-old Swedish striker John Guidetti has joined Stoke City on loan until the end of the campaign.