Brendan Rodgers has told Daizen Maeda to avoid an "it's not fair" mindset as he backed his return to top form for Celtic.
The Japan striker, who scored 33 goals last season, was denied a summer move because of the Hoops' failure to source an adequate replacement.
He was hooked at half-time in the Europa League game against Red Star Belgrade in Serbia on Wednesday night after struggling at centre-forward, with the Parkhead boss saying afterwards "he wasn't at his best, or anywhere near it".
It was Maeda's replacement, Kelechi Iheanacho, signed as a free agent the day after deadline day, who scored for Celtic in the 1-1 draw.
Ahead of the visit of Hibernian in the Scottish Premiership on Saturday, Rodgers said: "You can't underestimate how difficult it's been for him.
"This is a guy who