The forward could be out for a couple of weeks and Newcastle need to start their loan signing.
Newcastle United's latest injury blow is an inconvenient one. A side sitting 18th in the Premier League needs their first-choice striker and Aleksandar Mitrovic provides strength to lead the line up front.
But the simple fact is, even with Mitrovic, Newcastle score far too few goals.
And that's why, actually, Mitrovic's injury setback shouldn't be a major problem. Doumbia should be the man to step in and provide a new lease of life up front.
Asked if the on-loan forward was fit enough to start against Chelsea, Newcastle boss Steve McClaren replied 'yeah,' according to the Chronicle.
He duly didn't but will now have the benefit of a couple of weeks of training (and/or rest) to help him get even fitter.
So there are no excuses: Doumbia is the man who should step in for Mitrovic. If he doesn't, Newcastle fans might have cause for concern...
Indeed, if the 28-year-old isn't really deemed fit enough to step in even when Mitrovic is injured, why was he signed? Time is already precious when it comes to making an impact. And, if Doumbia doesn't provide the goals, will Newcastle score enough to stay up?
Questions might even be raised about those who authorised his signing - was Doumbia simply brought in to make it look like Newcastle were doing something up front, a superficial gesture?
Hopefully, the answers to all of these questions is a simple one: one resulting in Doumbia starting for Newcastle in their next Premier League game.