Wolfsburg signing Obafemi Martins has identified former Newcastle teammate Michael Owen as a major threat as the German club face Manchester United at Old Trafford on Wednesday night.

Martins, who joined the reigning Bundesliga champions in July, knows just what Owen can produce and says his new team needs to be wary of the United man's predatory skills.

"Owen is a dangerous player - he can score player - he can score from anywhere in the box," the Nigerian said.

"For me he is still a great player and I just hope he won't be in form when we play against him in the Champions League."

Wolfsburg are coming off a 3-1 home win over CSKA Moscow whilst Man Utd scraped past Besiktas 1-0 in their opening group encounters.