Tigers opened the campaign with five tries in victory over Benetton Treviso, while their Welsh rivals enjoyed a 43-34 home win over Perpignan.
“We’ve both got off to a decent start,” said Tigers director of rugby Richard Cockerill.
“Scarlets scored four good tries against Perpignan, which shows their form. The Rhys Priestland try just before half-time was as good as you will see. They’ve got guys like Stephen Jones, Regan King, Sean Lamont, quality players.
“We scored five very good tries in Treviso so it should be a good game on Sunday.”
Tigers secured victory in Italy with a late score from Alesana Tuilagi, following earlier scores from Matt Smith, Craig Newby, Martin Castrogiovanni and Ben Youngs.
“It wasn’t a perfect win, but it is five points away from home against a good Treviso side.
“As much as we would have liked to do some things better, we’re the only side to go there and score a try bonus point. You go away from home, take five points, that is of paramount importance. We did that and now regroup and move on to another tough game against the Scarlets.
“Our attacking game has been very good. We’ve scored 28 tries in six games. But we need to defend better and make teams work harder for their points.”
Cockerill expects to have a number of senior players back from injury this weekend, including Toby Flood, Ben Woods and Marcos Ayera, who all sat out the round one victory in Italy.
Tickets for Sunday’s game are available now. Phone the Tigers ticket hotline on 844 856 1880, book online and collect on the day or visit the ticket office at Welford Road (open 9am-5.30pm Thursday-Friday, 9am-5pm Saturday and from 9am on matchday).
Pool fixtures in the Heineken Cup are included in a Tigers season ticket.