The 33-year-old Wallabies front rower, who has 103 senior caps and 69 starts for his country, has more than 130 Super Rugby appearances under his belt for the New South Wales Waratahs and has also played in France with Bordeaux.
Kepu said: “I’m excited at the opportunity to join London Irish as they return back to the Premiership next season. I was very impressed by the facilities at Hazelwood and the new stadium taking shape in west London, so as a player, it is an exciting time to be joining the club.”
Irish have moved to strengthen their resources after winning promotion from the Greene King IPA Chmpionship this season.
Director of rugby Declan Kidney said: “We look forward to welcoming Sekope Kepu to London Irish in the New Year after he fulfils his ARU commitments.
“He will bring valuable experience to our front-row and having proved himself at the highest level, we are excited to have him join us here at Hazelwood.”
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