World number four Stanislas Wawrinka has confirmed that he will play in this summer's pre-Wimbledon Aegon Championships at Queen's Club for the third year in a row.
The French Open champion will join the likes of Andy Murray and Rafael Nadal at the June event in London.
"It is one of the longest-running and most respected tournaments on the ATP World Tour, with amazing grass courts and a great atmosphere," Wawrinka told the LTA's website.
"Also, many players have gone on to do well at Wimbledon after playing Queen's, and this happened to me the last two years. I reached the Wimbledon quarter-finals both times - my best results at Wimbledon so far."
Murray is the defending champion at Queen's and looking to become the first player to win a fifth title at the event.