Wayne Rooney scored his second goal of the match in the first minute of injury time as Manchester United rallied for a 3-2 victory over AC Milan in Tuesday's first leg of their Champions League semifinal.

Rooney's right-footed strike from the top of the area beat AC Milan keeper Dida just inside the near post for his fourth goal in three European games, and completed United's comeback from a 2-1 deficit.

Wayne Rooney applauds as he leaves the field following Tuesday's 3-2 win.
(Jon Super/Associated Press)

"We kept going to the end," Rooney said. "We knew if we could get a victory here, it will be easier when we go to the away leg."

AC Milan hosts the second leg on May 2.

Rooney's late goal reinforced thoughts of an all-English final because Chelsea plays Liverpool at London's Stamford Bridge in the other first-leg semifinal on Wednesday.

Manchester United led in the fifth minute when Cristiano Ronaldo headed a corner off Dida's shoulder.

The ball deflected up and Dida scrambled back, only to get a finger tip to it before it dropped into the goal.

Kaka sparked AC Milan, scoring in the 22nd and 37th minutes to put the Rossineri ahead by halftime.

The Brazilian, the top scorer in Champions League this year, ran onto a through ball from Clarence Seedorf, avoided a sliding tackle from Gabriel Heinze and struck a left-footed shot past keeper Edwin Van der Sar.

Kaka tallied his ninth European goal of the season by capitalizing on a defensive mistake.

He rounded Darren Fletcher, headed the ball forward and scored unmarked after Heinze collided with Patrice Evra.

Rooney equalized after Paul Scholes chipped the ball over the Milan defence.

It was only the third away goal Milan had conceded in Champions League this season.

"It's a bitter defeat," Kaka said. "But now we hope that, at home, our public helps us to get to the final.

"We did something wrong. Now we have to correct it."