Weiss spent a single season at Ibrox, winning the league title and a Scottish Cup under Walter Smith.
And despite leaving Scotland six years ago and currently plying his trade in Qatar for Al-Gharafa, Weiss is clearly keen to fuel the fire between himself and the Celtic supporters.
Neymar has scored twice, while Edinson Cavani and Kylian Mbappe have both got on the score sheet for the hosts, while Moussa Dembele gave the Celtic support a brief sense of hope having scored the opener.
However, with PSG looking capable of racking up a cricket score in the second 45 minutes, Weiss took to social media to ask whether the match was simply an exhibition game instead of a competitive fixture:
The 27-year-old tagged another former Rangers player, Filip Sebo, in his post:
— Vladimir Weiss (@VladiW7) November 22, 2017
Sebo, who like Weiss spent a single season at Rangers, soon replied:
Sebo and Weiss will no doubt be inundated with some colourful responses from the Celtic support for these posts!