Celtic eased to victory against Livingston to maintain their winning start to another Premiership title defence as the fans again showed their frustration at the Hoops board.
Three goals in the second half saw the visitors' resistance broken, with summer signing Benjamin Nygren netting a double before striker Johnny Kenny scored his first goal at Celtic Park.
Shin Yamada did have the ball in the net before the break only for it to be ruled out for offside, and Jerome Prior produced a brilliant save to deny Hyun-Jun Yang on what was a busy afternoon for the away goalkeeper.
Frustrated by perceived transfer inactivity in recent weeks, fans chanted 'sack the board' during and after the goalless draw against Kairat Almaty in the first leg of the Champions League play-off in midweek.
The jeers came again as banners which read 'zero ambition', 'neglect team', 'rinse fans' and 'basic board' appeared in one section.
Brendan Rodgers' side now face a crucial trip to Kazakhstan before the first Old Firm clash of the season against Rangers next Sunday, live on Sky Sports.
More to follow.
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Kasper Schmeichel with the clean sheet Three game three wins three clean sheets nine points 7 clear of Rangers so far The 56th is coming 🙌