Manchester United boss Sir Alex Ferguson has admitted Danny Welbeck's dazzling display in the 3-0 win over Tottenham has handed him a selection headache.

Welbeck scored one goal and fashioned another for Anderson as United made it two wins from as many games in the league this season.

Javier Hernandez climbed off the bench for the final 15 minutes, signaling his return to fitness, and the Mexican is Ferguson's preferred partner for Wayne Rooney. But the Scot has admitted that with Welbeck playing so well, he has a dilemma in the coming days and weeks.

"The first half he (Welbeck) didn't play as a centre-forward. He was too much in midfield," Ferguson said.

"We needed more presence up front, a target up front and in the second half he was better that way. He's always had great ability Danny.

"The horrible thing for me now is with Chicharito (Hernandez) back what do I do? It's going to be a problem for me.

"It was always a situation that we've had to wait for him. He's still only 20 - he's got a great future."

Spurs matched United in the opening period, but goals from Welbeck, Anderson and Rooney sealed an ultimately comfortable win and Ferguson was pleased with the performance.

"The second-half performance was absolutely fantastic," he said. "It was a fast game in the first half, it was end-to-end. Tottenham had a lot of possession, but in the second half we just took off and turned in a fantastic performance."

Tottenham manager Harry Redknapp lamented the manner with which his side faded after going behind.

"It's disappointing. After 70 minutes there was nothing in the game," he said. "We had as much possession and I thought we were bang in it. I thought we would get a point.

"Then we brought on a striker and opened up and we went out of the game badly."