The Aston Villa playmaker is currently on Three Lions duty alongside the Whites midfielder as the two attempt to plot a path to Euros glory with Gareth Southgate's men.
Phillips put in a Man of the Match display against Croatia last weekend and tonight will hope to back up a strong showing against the auld enemy - Scotland - at Wembley.
Southgate's squad are well placed to progress from Group D after an opening day win while the pressure is on the Tartan Army following defeat to the Czech Republic at Hampden Park.
Grealish is yet to feature at this summer's delayed European Championships, but has been singing the praises of his fellow international and Leeds.
“He’s [Phillips] obviously very difficult to play against, I think the whole Leeds team is actually because of the way they play and the way they run,” Grealish told talkSPORT.
“Kalv is known as a passer and a hard tackler, but at the weekend he showed a different side to his game, for when he set up the goal.
“He went past a couple of players and then cut in and slipped Raheem [Sterling] through.
“Obviously we see that every day in training and we know just how good Kalvin is, so it doesn’t really come as any surprise to us, the way he performed at the weekend.
“Yorkshire Pirlo? I’ve heard that plenty of times. That’s what he is, isn’t he?”
Grealish also joked that he had asked his England teammate to have a word with the Whites fan base for their social media activity.
“I don’t know if you know, but I get absolutely caned by Leeds fans 24/7,” he laughed.
“So I always say to him, ‘tell your fans to stop messaging me on Twitter, man!’ Me and Kalv always have a bit of banter about that.”