Celtic are leading AZ Alkmaar 2-0 at half-time in their Europe League play-off tie.
Anthony Ralston delivered another impressive performance as he continues to seize the right-back jersey amid transfer links with Croatia's Josip Juranovic.
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Kyogo Furuhashi was back in the middle of an attacking three and found the net again, does that mean James Forrest will occupy the left more often?
Joe Hart, Carl Starfelt and the importance of Callum McGregor's fitness all come under the microscope too.
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