Former Arsenal midfielder Merson, in his Daily Star column, said Mourinho regretted joining Tottenham as he was no longer "high-fiving ball boys" in reference to his celebrations in his second game in charge against Olympiacos.
Rose was a fixture in Mauricio Pochettino's starting line up at the start of the season, but he found his playing time restricted as soon as Mourinho was drafted in to succeed the Argentine in November.
Merson said the Portuguese are only in the club to get them into the top 4.
Danny Rose claims Jose Mourinho didn't give him the same opportunities at Tottenham as the rest of the defenders in the squad, which is why he chose to leave the club in January. He's gone back to being Grumpy Mourinho again.
'You know me quite well, enough to know that I am really happy. Hard? yes, but if it was not hard it wouldn't be for me.
The player now earns a basic wage of around £1,000 per week, but the new contract would see him earn around £15,000 per week.
"I like the players and who they are".
"I do feel I wasn't given as much of a chance as everybody else in the backline".
"That's just me. The reality is that I am happy and I look forward to what is coming, and even more for what is coming next season".
Back in 2017, Mourinho unveiled a shaven look while boss of Manchester United, quipping that "the haircut is a privilege because I'm the kind of guy who can do it and in a one month I have new hair, a new wig!". Chelsea are in the driving seat to finish fourth and I can't see Spurs catching them right now.
Mourinho was in Munich on Sunday to watch Champions League opponents RB Leipzig and was quizzed by Sky Sports about Merson's comments.
Mourinho takes his Spurs team to Aston Villa on Sunday, following a winter break in the Premier League.