Rabeni helped Fiji reach the quarter-finals of the tournament following a superb win over Wales in the group stages. The 28-year-old is selected on the left-wing for Saturday's Guinness Premiership clash with Worcester Warriors at Welford Road.
Ben Herring earns his first start on the openside flank since joining from the Wellington Hurricanes, while Sam Vesty comes back into the starting XV at inside centre.
Paul Burke and Ben Youngs continue at half-back, with Marco Wentzel moving from lock to blindside flanker.
Leicester Tigers (vs Worcester Warriors, Welford Road, Saturday 3pm)
15 Geordan Murphy
14 Johne Murphy
13 Ollie Smith
12 Sam Vesty
11 Seru Rabeni
10 Paul Burke
9 Ben Youngs
1 Boris Stankovich
2 Benjamin Kayser
3 Martin Castrogiovanni
4 James Hamilton
5 Louis Deacon (c)
6 Marco Wentzel
7 Ben Herring
8 Brett Deacon
Replacements
16 Mefin Davies
17 David Young
18 Luke Abraham
19 Jordan Crane
20 Frank Murphy
21 Matt Cornwell
22 Tom Varndell
Tickets for the game against Worcester (kick-off 3pm) are available from the Tigers ticket office, via this website or by calling 08701 28 34 30.