As far as OM are concerned, any hope of winning the league has long since passed. For weeks now each game has been billed as make or break, but their inability to find the breakthrough in relatively straightforward situations has left them way behind the frontrunners for the league. If it was indeed make or break, consider it broken.
On the other hand, PSG and their millions have up until now met their expectations, sitting top of the table with 30 points, if albeit, separated only by goal difference from Montpellier and looking on course to make the title theirs in the first season with the new Qatari backers.
However, received wisdom has it that in the derby form and stats go out of the window. As soon as the game itself kicks off, you can forget everything else knowing that what counts is what happens in the 90 minutes—but we know of course it's not as simple as that.
Here are a few observations which will have an impact on how the game turns out.