The 35-year-old Brazilian is currently a free agent following his release from the European champions at the end of last season, and is believed to be weighing up an offer from the cash-rich Eastlands outfit to provide back-up for Wayne Bridge.
Sylvinho made 55 league appearances for Arsenal from 1999-2001, scoring three times, before departing for Celta Vigo and later Barcelona, with whom he notched 89 la Liga outings, helping the Catalans win an unprecented treble last term.
"There was contact with Manchester City a while ago and that has been renewed recently," Sylvinho's representative Hans Lamberz told skysports.com.
"Sylvinho is a free agent and he is in no rush to sign anywhere as he can join a club outside the transfer window.
"Manchester City is obviously an interesting option with the talent there and Mark Hughes as manager.
"We are waiting for a decision from the directors of Manchester City and Sylvinho also has a decision to make."
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