Theo Walcott claims Manchester United will be running scared when they face Arsenal in the Champions League semi-finals.

Walcott's superb chip put Arsenal on course to a 3-0 win over Villarreal in the second leg of their quarter-final, which secured a 4-1 victory on aggregate.

They will now face United over two games, the first of which is at Old Trafford on 29 April, for a place in the final in Rome.

United are on course for a possible Quintuple but Walcott believes Arsenal are the team to fear, having lost only one game in five months.

He said: "There is a lot of confidence in the dressing room, everyone is buzzing. We feel every team are scared of us as soon as we step on the pitch. It's great to play when things are going like that.

"We are playing brilliant football and scoring goals from all sorts of positions which helps the team.

"We are defending well and even though we have players out injured, others are coming in and doing just as good a job.

"It will be difficult against United but we play them regularly in the Premier League and do very well against them.They are probably the best team in the world but as long as we dig in, I'm sure we'll be fine."

Arsenal's next match is at Wembley on Saturday, when they face Chelsea in the FA Cup semi-finals, and Walcott cannot wait to exploit the Blues' problems at the back.

Chelsea have conceded seven goals in their last two matches and Walcott said: "We will be looking to utilise their weak spots.

"If we play like we did against Villarreal, then I'm sure we'll get some goals."