The Newcastle United striker made a mockery of his team-mates' performance after coming back from injury.
It doesn't say a lot for your new signing when an older team-mate in the same position comes on after several months injured and delivers a better performance.
Sadly, that's exactly the situation Alan Pardew faced at Newcastle yesterday.
And, when the home side went 2-0 down, Pardew (although he was going to anyway) replaced Riviere with Papiss Cisse.
The Senegalese striker duly scored two goals to rescue a morale-boosting point for Newcastle.
|Team||Pos||Shots||Shots on Target||Apps||Mins|
|Papiss Demba Cissé||Newcastle||FW||3||2||1||21|
But, as Opta stats show, that isn't where it ends. Indeed, Riviere took as many as five shots during his 69 minutes on the pitch. Of those, not a single one hit the target.
Compare and contrast that with 29-year-old Cisse, who took just three shots - in only 21 minutes - and scored from two of them. That's exactly the type of clinical touch Newcastle have been missing so far this season.
When Cisse is fully fit, it seems Pardew will have no option but to start him up top instead of Frenchman Riviere if the new signing's poor form in front of goal continues.
For now, yesterday's draw with Hull is one the 24-year-old will want to forget. And what a nice touch Cisse's goal celebration was, too.