George O'Neill, BBC Sport Scotland
Kyogo Furuhashi is unquestionably the first-choice striker at Celtic, but it was left to his understudy to emerge from the shadows and make the difference against St Mirren on Wednesday night.
While Oh Hyeon-gyu has struggled to make a tangible impact since his arrival in Glasgow last season, you wouldn't have known it from his performance against the high-flying Buddies.
The South Korean was only given 20 minutes off the bench to influence the game, but troubled the well-drilled defence with his physicality and clever movement before tucking away the winning goal beautifully.
It was one of Oh's two shots from inside the box - no other Celtic player had more. That goal - his first of the season - might prove pivotal in the course of Celtic's season and also in igniting Oh's career at the club.
With games continuing to come thick and fast both domestically and in Europe, Celtic will need to use the depth of their squad. And if Oh can replicate his cameo from Wednesday night, he could be a key player for Rodgers in the coming months.
The 22-year-old has rough edges to smooth out and lacks finesse in his finishing at times, but his physical prowess offers a different option to Kyogo and his confidence will soar after sending Celtic Park into raptures in midweek.
One thing that the 22-year-old certainly has in his favour is the support of his manager.
"He's valued very much by ourselves," Rodgers said. "What is important is that when he comes in he contributes, and that was his best contribution since I've been here.
"He works so hard, always does extra work, never gets down, and I know I can trust him. His goal was a wonderful finish and deservedly the winner."