Celtic defender Jozo Simunovic is to undergo knee surgery that could rule him out for another lengthy spell.

The centre-half has not featured for the Hoops since their first-leg win over AIK in the Europa League qualifiers.

He suffered a knee injury and has been nursing the knock since that time.

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But boss Neil Lennon has now confirmed the Croatian could be set for more time on the sidelines after surgery to clean up the issue.

Speaking to Celtic TV, Lennon said: "Jozo is in for surgery.

"He's going to have a clean out in the knee, an arthroscopy it's called."

The manager also confirmed that this Thursday evening's clash with Rennes in France will come too soon for Nir Bitton and Mikey Johnston.

And Ukrainian starlet Marian Shved will also miss the action.