Celtic have rejected Arsenal's latest bid for left-back Kieran Tierney, Sky Sports News understands.
Celtic manager Neil Lennon has said he needs to "trim" his squad and sell some players ahead of the upcoming season.
Catch up with the action as Celtic won 3-1 at Sarajevo in the Champions League. Earlier, Rangers beat St Joseph's 4-0 in the Europa League.
Arsenal have made an improved offer in the region of £25m for Celtic left-back Kieran Tierney, Sky Sports News understands.
Neil Lennon stressed the importance of Champions League football to Celtic as he prepares for the first of four qualifiers in Bosnia and Herzegovina.
Celtic manager Neil Lennon admits he was “not satisfied” with Olivier Ntcham’s transfer comments and says he will speak to the midfielder about his "mindset".
The first Old Firm derby of the season will be shown live on Sky Sports on Sunday, September 1.
Boli Bolingoli-Mbombo says he did not seek assurances over Kieran Tierney's future before signing for Celtic.
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