Celtic's Moussa Dembele celebrates after scoring their second goal from the penalty spot
The 20-year-old - who arrived in the summer following the expiration of his contract at Fulham - had gone through pre-season and the club's first few Champions League qualifiers without opening his account for the Bhoys.
However, that changed when he stepped up to take a stoppage-time penalty during the second-leg of their third qualifying round tie with Astana in midweek to send Brendan Rodgers' men to within one round of the group-stages.
And Provan suggested that the importance of that goal, as well as the attitude he showed to take the spot-kick could mean that it proves to be the most significant strike of the youngster's time at Parkhead.
"The second might be the most important strike of Moussa Dembele’s Hoops career," he told The Scottish Sun.
"Think about it. The former Fulham star was still looking for his first goal in Glasgow.
"Fans' favourite Leigh Griffiths had already scored from the spot in the first half. It would have been easier for Dembele to pass the buck to Griff. Instead, he had the bottle to step up for his breakthrough goal.
"Now he's taken the heat off himself I expect Dembele to score freely. If he was able to net regularly in the English Championship, Dembele will get a bundle of goals in Scotland."
As Provan suggests, with Leigh Griffiths still on the pitch when the side were awarded their second penalty - the 25-year-old had converted the first one in added time in the first-half - it was perhaps a huge risk for Dembele to step up and take on the responsibility, especially as his goalless patch had seen some supporters begin to question whether he was ready to lead the line for the club.
But he proved that he has plenty of confidence in his own ability, and that could be crucial in future as Rodgers will know that in games when things are not going quite right for the Frenchman, he will still have the belief to try and create a moment of magic to turn things around.