Lukaku drew his side level in the first half before setting up Jesse Lingard to head home the winner 20 minutes from time at Old Trafford.
Meunier, who is an international team-mate of Lukaku’s, has admitted in the past that he supports Manchester United and said he would be open to joining the Red Devils.
And the defender did little to dampen speculation by tweeting his approval of Lukaku’s performance after Lingard scored the winner.
— Thomas Meunier (@ThomMills) February 25, 2018
The Belgian tweeted: ‘Romeluuuuuuuuuuuuu Lukakuuuuuuuuuu’ directly after Lingard’s goal went in.
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Reports earlier this month suggested PSG were happy to let Meunier move to Old Trafford but were looking for a hefty £36m to let him go.
Lukaku’s performance against Chelsea went some way to answering critics of the forward who accuse him of failing to produce in ‘big games’.
United now have a six-point lead over Chelsea and take on Crystal Palace away next Monday while the Blues travel to Manchester City.