Kean struck in the 76th minute for his 10th Ligue 1 goal
since joining PSG on loan from Everton at the start of the season, handing
Mauricio Pochettino's side the points after Julian Draxler's opener had been
cancelled out by Rony Lopes at a freezing Parc des Princes.
The result allowed the reigning champions to go
provisionally top of the table on goal difference from Lille, who play Brest at
home on Sunday. Lyon are two points back in third but can climb to the summit
with a win at home to Montpellier later on Saturday.
PSG are expected to be without Neymar for at least the next
three weeks after the world's most expensive player came off with a groin
injury in a midweek French Cup win at second-tier Caen, a huge blow ahead of
the Champions League last 16, first leg in Barcelona on Tuesday.
With Angel di Maria also out for that game, Pochettino
handed starts to Kean and Mauro Icardi alongside Kylian Mbappe in attack
against Nice, as PSG sported a pink and violet-coloured fourth kit with player
names on the back in Mandarin to mark the Lunar New Year.
The new look inspired the home side to go in front midway
through the first half thanks to Draxler, who followed up to score after Icardi
had turned Thilo Kehrer's cross onto the post, the German scoring on his first
league start since October.
However, a Nice side who have struggled badly for form this
season drew level five minutes into the second half when Marquinhos attempted a
pass out from the back but only succeeded in finding Lopes, who picked up the
ball on the edge of the box and fired high into the net.
Keylor Navas then turned Amine Gouiri's shot onto the bar
with PSG on the ropes, but Pochettino's side grabbed the winner with just under
quarter of an hour left.
Mbappe's cross from the left to the back post was returned
into the six-yard area by Icardi, and Kean headed in.