Back row duo Juan Manuel Leguizamon, 22, and Phil Murphy, 29, have agreed new contracts with Guinness Premiership side London Irish.
Leguizamon, an Argentine international who has scored three tries in 18 games this season, has signed until 2009.
Canadian international Murphy, who has made 71 appearances in three seasons, has agreed to stay until 2008.
Club director of rugby Brian Smith said: "Both players offer us different options at the base of the scrum."
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