Manchester United are watching Ajax striker Karl Dolberg.

The Manchester Evening News says United are interested in a possible move for Dolberg.

Atletico Madrid star Antoine Griezmann remains United's No 1 summer target.

But Jose Mourinho also wants to invest in a younger striker.

Dolberg was spotted by John Steen Olsen, the same Ajax scout who discovered current United striker Zlatan Ibrahimovic, and he is full of praise for the teenager.

"Kasper is an extraordinary talent," Olsen said. "I knew he would be a perfect player for Ajax.

"Kasper has exceptional qualities: speed, technique, intelligent play and good in the air."