City want to sign a striker by all means, Kane is the perfect man for the job, but he would definitely not come cheap for City, and then If City also have plans of signing Grealish, then they must sell one or two of their star players.
It wouldn't be hard to attain Grealish if they provide some cash deal with player. They are already trying to offload some of their notable players and I think can easily negotiate with Aston Villa. Thing is if Aston Villa wants to let him go? Reports are making the Grealish to City deal like an easy one but to me doesn't feels like it.