Hamburg defender Michael Mancienne is a fan of Borussia Dortmund striker Robert Lewandowski.
Lewandowski is a target for Manchester United and Chelsea.
"He's a very good player, a good striker, and you could see that even though we won the game," former Blues defender Mancienne told the London Evening Standard. "He's a tough opponent and if he gets a chance he will take it, more often than not.
"He likes to receive the ball to feet in and around the box, where he can bring other players into the game, but he will also chase you down if the ball is played over the top. He's a hard worker and a player with a high technical level, so England will have to be on their guard."