Roddick confirmed for Queen's

Four-time winner Andy Roddick has confirmed his participation in the AEGON Championships at The Queen's Club in June.

The American, who won the Wimbledon warm-up event in 2003, 2004, 2005 and 2007, joins Andy Murray, Jo-Wilfried Tsonga and Juan Martin Del Potro in what should be a stellar field.

Roddick beat Roger Federer at the Sony Ericsson Open last week and is confident he is building momentum for the rest of the season, saying: "I feel like something good is coming."