Rangers continue to be linked with bringing Martin Skrtel to Ibrox.
Celtic must challenge Scottish Premiership rivals Ibrox side Glasgow Rangers for Martin Skrtel.
Skrtel was a target for Rangers in the summer, in what would be a reunion with Steven Gerrard.
Worrall is currently on loan at Rangers from Nottingham Forest.
Rangers manager Steven Gerrard is reportedly still hopeful of bringing his former Liverpool defender Martin Skrtel to the Scottish Premiership.
Rangers were reportedly interested in signing Steven Gerrard's former teammate in the summer.
Ibrox side Glasgow Rangers shouldn't consider trading Alfredo Morelos for Martin Skrtel.
If Scottish Premiership giants Rangers are still interested in bringing Martin Skrtel to Ibrox, Steven Gerrard has been given the perfect chance.
Newcastle are reportedly in talks to sign experienced defender Martin Skrtel, but could that help Celtic?
Newcastle have reportedly sent officials to Turkey in an attempt to secure a deal to sign Martin Skrtel.