Gerard Moreno’s thumping low strike 26 minutes from time spoiled the home party and Real has seen its lead at the top cut to two points after Barcelona’s win Saturday.
The arch rivals meet in El Clasico on March 22, with the title very much up for grabs.
Now only two points separate @realmadriden and @FCBarcelona… Who will win the @LigaBBVA title? pic.twitter.com/CQcb1p5oop
PSG was hoping to leapfrog Lyon at the top, but could not break down the stubborn Monaco defense, keeping its 10th clean sheet in the last 11 matches.
Lyon, beaten 2-1 at Lille Saturday, still leads title holder PSG by a point at the top.