The Paris St Germain player said: "He has a great left foot and has done well for his club and fantastically here with the national team and is making a real impact."
Sweden coach Erik Hamren said: "He is a great talent who has been given a lot of playing time and confidence.
"With that combination, you can develop very fast. It is wonderful to watch him. He is very speedy and has impressed me.
"He has taken his chances in the three internationals he has played."