The Brazilian has made just seven league appearances since his arrival from Shakhtar Donetsk, and was overlooked in the weekend's defeat
Gary Neville is disappointed with the impact Fred has had since moving to Manchester United in the summer, suggesting his former club may have overpaid for his signature.
The Brazilian was the subject of a fierce tussle between Manchester rivals United and City, before finally prompting for the red half of the city.
United paid out a fee of £50 million ($64.5m) for his services, but so far have received little on their investment.