London Irish have signed 29-year-old Leicester Tigers lock George Skivington on a three-year-deal from the start of next season.
The 18-stone, 6ft 6in forward captained the England Saxons for two seasons and guided the side to victory in the 2010 Churchill Cup.
He has made 40 appearances over the last two seasons for the Tigers and previously played for London Wasps.
"George is a powerhouse and a physical player," said Exiles coach Toby Booth.
His arrival all but confirms Nick Kennedy's expected departure to Toulon next season.
Skivington won both the Heineken Cup and Premiership titles while at Wasps.
"Having worked with Toby Booth at Saxons level before, I know what he is about and what he expects from his players," said Skivington.
"Irish are an ambitious club with a strong coaching set-up and there are lots of talented players in the squad that I look forward to playing alongside."
Booth added: "George will bring additional size and strength to the front five of our forward pack.
"I already have first-hand knowledge of George having coached him previously and have always been impressed with his work ethic and on-field leadership.
"His experience and success means that he brings with him not only a wealth of knowledge, honesty and hard work, but also a winning mentality.
"He has a lot to offer London Irish both on and off the field and I very much look forward to working with him again."