Ole Gunnar Solskjaer heaped praise on maturing Luke Shaw for translating his "immense quality" into performances at Manchester United.
The 25-year-old has endured a topsy-turvy time since arriving at Old Trafford from Southampton as the world's most expensive teenager in 2014.
"Luke has immense quality," the United boss said. "He has got very good technique, good quality.
"You see the few times against Liverpool he takes the ball and drives forward. It's something that I've pushed him more to do because we know he can do it.
"It's generally down to the boy himself. He's mentally very good at the moment.
"He has become a dad, he's physically very good, his fitness is so much better. He keeps beating his high-intensity stats, his total distance stats.
"I think he's been consistently up there with what a full-back should be doing.
"And when you have the talent of Luke, when that fitness and mental bit is sorted, you are always going to get good performances."
Injuries and a particularly challenging period under Jose Mourinho have restricted Shaw to just 159 appearances at United, but the left-back has looked rejuvenated under renewed pressure for his place.