Obafemi Martins claims Manchester United are less predictable without Cristiano Ronaldo and Carlos Tevez.

Most pundits assumed United would struggle without the high-profile duo, who quit Old Trafford for Real Madrid and Manchester City respectively during the summer.

But, on the back of seven successive wins, United are top of the Premier League and opened their Champions League campaign with a win over Besiktas in Istanbul.

Tonight, Martins hopes to help his new club, Wolfsburg, halt that run at Old Trafford.

But the Nigerian striker knows it will not be easy. The former Newcastle star has previously scored at Old Trafford but he feels this United have more options than the ones he has encountered before.

"Even without Ronaldo and Tevez, I would say you face the same problems playing against United," said Martins.

"In fact they are playing much better than before. When Ronaldo was on the pitch, everyone looked to him, expecting him to change the game when his team most needed it.

"But now United have a lot of players who can change a game, like Wayne Rooney, Michael Owen and Dimitar Berbatov.

"Even the defenders can score goals, so we must watch out for them all over the pitch."

Rooney is the man Martins is most wary of. The England striker is set to make his 50th Champions League appearance for United tonight, with Sir Alex Ferguson among those who believe the 23-year-old is destined for even bigger things.

Martins added: "He is playing so well at the moment - he can destroy defenders in an instant."

South Korean winger Park Ji-Sung misses tonight's match with a virus with Ryan Giggs expected to start.

Patrice Evra has recovered from a similar problem, while Owen should be available to play despite the striker also missing training with a minor groin strain.

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