Ange Postecoglou admits his side must "improve on everything" despite a 2-1 friendly win over Charlton. The Premiership giants were hugely impressive at times in their second pre-season test in Wales, particularly in a first half which saw Karamoko Dembele and Albian Ajeti get a goal.
After the break though the intensity dropped and Celtic conceded to Connor Washington with the defence wide open. Their new boss is clearly starting to make his mark in terms of playing style, but was in no mood to get carried away after the narrow win.Assessing the game Postecoglou told Celtic TV: "It was ok."It was another pre-season game, the first half was quite good we controlled the game pretty well (but) second half we got a little bit stretched and.
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