Gleeson seeks win on return to Oz
The back-rower grew up in Sydney and captained Australia under-21s but decided two years ago his international ambitions lay in the Emerald Isle after being unable to secure a regular start in four seasons with the Waratahs.
The 27-year-old breakaway, whose family migrated from Dublin to Sydney in 1984, will play his first international match on Australian soil against the Wallabies in Perth on Saturday.