O'Gara returns to the starting line-up for the first time since the summer tour when he played against Samoa and Tonga while his Munster colleague John Hayes played as a second half replacement against Romania in his first international outing since the English Six Nations game earlier this year.
Eric Miller suffered a horrific head injury in the summer tour game against Tonga but made a remarkable recovery to play an outstanding role against Samoa a week later. He sees this game against Namibia as an opportunity to stake a claim in the side for the games ahead.
"It's great to get this chance. For those of us coming in, it doesn't matter who we're playing, whether it's Namibia, Argentina or anybody. It's a chance to perform.
"But at the same time I think personally it's important to stay relaxed and not try too hard because then you can come unstuck in this kind of situation. So just go out do your own job and hopefully get a few runs with the ball. Make a few tackles, get a rub of the green in that sense.
" I think the fact that Eddie has picked a very strong team apart from the changes, means that the players who have come in are there or thereabouts as regards selection.
" You've got to believe you have a chance, if you pull out a really big performance, to get in for the Adelaide games. At the same time it a long tournament so you've gotta just keep your head on the swivel. But this is the chance this weekend and I'm hoping to take it."
Go to www.munsterrugby.ie to see Tom Felle's interview with Ronan O'Gara.
15 - Girvan Dempsey (Leinster - Terenure College);
14 - Shane Horgan (Leinster - Lansdowne)
13 - Brian O'Driscoll (Leinster - Blackrock College)
12 - Kevin Maggs (Bath)
11 - Denis Hickie (Leinster - St. Mary's College)
10 - Ronan O'Gara (Munster - Cork Constitution)
9 - Peter Stringer (Munster - Shannon);
1 - Reggie Corrigan (Leinster - Greystones)
2 - Keith Wood (Munster - Garryowen) Captain
3 - John Hayes (Munster - Shannon)
4 - Malcolm O'Kelly (Leinster - St. Mary's College)
5 - Paul O'Connell (Munster - Young Munster)
6 - Simon Easterby (Llanelli)
7 - Alan Quinlan (Munster - Shannon)
8 - Eric Miller (Leinster - Terenure College)
16 - Shane Byrne (Leinster - Blackrock College)
17 - Marcus Horan (Munster - Shannon)
18 - Donnacha O'Callaghan (Munster - Cork Constitution)
19 - Victor Costello (Leinster - St. Mary's College)
20 - Guy Easterby (Rotherham)
21 - David Humphreys (Ulster - Dungannon)
22 - John Kelly (Munster - Cork Constitution)