Brad Thorn and Logovi'i Mulipola return to the Leicester Tigers forward pack for the European Rugby Champions Cup fixture against the Scarlets at Welford Road on Friday evening (7.45pm kick-off).After scoring a try in the home win over defending European champions Toulon, Thorn has been sidelined since suffering a calf injury in the return fixture in the south of France in the fourth round of European action.   Samoan prop Mulipola made his return from an Achilles injury with an appearance from the bench in the league game against Harlequins last weekend.   Italian duo Michele Rizzo and Leonardo Ghiraldini return to the front row.   There are places for Freddie Burns and Seremaia Bai in the backline and Matt Smith returns from injury to provide backline cover on the bench.   Tickets for Friday’s match are still available from the Tigers ticket office. Visit the ticket office at Welford Road or phone 0116 319 8888 (option 2) to book your place. The office is open 8.30am-5pm Thursday and from 8.30am up to kick-off on Friday. Or click here to book online.   Leicester Tigers (v Scarlets, Welford Road, Friday 7.45pm) 15 Mathew Tait 14 Adam Thompstone 13 Vereniki Goneva 12 Seremaia Bai 11 Miles Benjamin 10 Freddie Burns 9 Ben Youngs (c) 1 Michele Rizzo 2 Leonardo Ghiraldini 3 Logovi’i Mulipola 4 Brad Thorn 5 Geoff Parling 6 Tom Croft 7 Julian Salvi 8 Jordan Crane   Replacements 16 Tom Youngs 17 Marcos Ayerza 18 Fraser Balmain 19 Graham Kitchener 20 Robert Barbieri 21 Sam Harrison 22 Owen Williams 23 Matt Smith Scarlets have made a change to their original announcement, with Peter Edwards now starting at tighthead prop and Jacobie Adriaanse switching to a place among the replacements. Scarlets: 15 Jordan Williams, 14 Harry Robinson, 13 Regan King, 1 2 Scott Williams (c), 11 Hadleigh Parkes, 10 Rhys Priestland, 9 Aled Davies; 1 Rob Evans, 2 Ryan Elias, 3 Peter Edwards, 4 Jake Ball, 5 George Earle, 6 Aaron Shingler, 7 John Barclay, 8 Rob McCusker Replacements: 16 Darran Harris, 17 Wyn Jones, 18 Jacobie Adriaanse, 19 Lewis Rawlins, 20 James Davies, 21 Rhodri Williams, 22 Steven Shingler, 23 Rory Pitman