LONDON (Reuters) -- Manchester United stayed in the hunt for a treble and sent Arsenal crashing out of a second competition in five days when they deservedly won their FA Cup quarter-final 2-0 at Old Trafford on Saturday.

A goal in each half from Fabio da Silva and Wayne Rooney took United through to a semi-final at Wembley Stadium next month giving Alex Ferguson's Premier League leaders the perfect boost before their Champions League last-16 second leg against Olympique Marseille back at Old Trafford on Tuesday.

For Arsenal the night ended in yet more disappointment following their elimination from the Champions League by Barcelona on Tuesday and their defeat by Birmingham City in the League Cup final at Wembley last month.

Arsenal are second behind United in the Premier League title race, and could still salvage something from a season that promised so much just two weeks ago, but they will need an enormous improvement in their form to do that.

In Saturday's other quarter-final, Bolton Wanderers won 3-2 at Birmingham to clinch a place in the semi-finals for only the second time since they last won the FA Cup in 1958.

The quarter-finals will be completed on Sunday when Manchester City are at home to Championship (second division) side Reading and Stoke City host West Ham United.

SI Apps
We've Got Apps Too
Get expert analysis, unrivaled access, and the award-winning storytelling only SI can provide - from Peter King, Tom Verducci, Lee Jenkins, Seth Davis, and more - delivered straight to you, along with up-to-the-minute news and live scores.