Celtic fans noted Moussa Dembele failing to get off Lyon's bench.
Lyon signed Moussa Dembele from Celtic at the end of last month.
Liverpool travel to Tottenham Hotspur on Saturday for one of the biggest games in the Premier League season so far.
Scottish Premiership champions Celtic were surprisingly linked with Uruguay's World Cup attacker Giorgian de Arrascaeta during the summer transfer window.
Dembele left Celtic to join Lyon on deadline day.
Moussa Dembele left Brendan Rodgers’s Celtic for Lyon in the summer transfer window.
Martin Terrier responds to Moussa Dembele joining Lyon from Celtic.
Celtic midfielder proved his value in Old Firm win.
Celtic sold Moussa Dembele to Ligue 1 club Lyon with Premier League Southampton nowhere to be seen.
Tottenham Hotspur should surely have challenged Lyon for the former Celtic hitman.