Owen impressed when he came on as a second-half substitute in United’s 1-0 Champions League victory over Besiktas on Tuesday.
Vidic said: “As a defender, I can say with some certainty that it is really tough to mark Michael Owen. He’s dangerous from all positions, so you always need to be focused and on your toes.
“I’m sure our fans will soon realise that as well and see the best of him. I am pleased to be on his team.
“Michael has proven his quality through the years so I don’t see any reason why he shouldn’t be successful. He can help us a lot, so we are all very happy to have him in our team. He is an important signing for the club.
“Manchester United has always had fantastic forwards and certainly we have such a situation in the current team as well. No matter who plays, I’m sure we will be lethal in front of goal.”
