Chelsea reportedly hold a strong interest in signing Bayern Munich winger Kingsley Coman this summer.
Out of the trio, Ziyech has been linked with a possible exit at the end of the season after failing to make an impact.
Aside from the Moroccan, Christian Pulisic is also understood to be considering his future due to limited gametime.
According to Sport1, the west London side hold a strong interest in Coman, who recently turned down a new deal.
It is added that the club could move for him in case Pulisic or Ziyech head through the exit door this summer.
Coman has two more years left on his contract and Bayern are determined to renew his deal in the near future.
However, they may consider his sale, suppose there is no agreement by the summer. Manchester United are also interested in Coman.
The Frenchman has bagged six goals and 13 assists in all competitions for the European champions this season.