Phone the Ospreys ticket hotline now on 08700 400 004 or book online at www.ospreysrugby.com
Qualification for the quarter-finals will come down to this final game in Pool 3. Kick-off is at 1.35pm at the Liberty Stadium in Swansea.
Ospreys expect to welcome their biggest crowd of the season with 14,000 tickets already sold in the 20,000-capacity Liberty Stadium.
The Supporters Village opens to home and away fans at 11.35am, with food and drink as well as entertainment in a family environment. Swansea band The Somethings will be performing before and after the match.
Kidszone will be open in the South and West Stand Concourse areas, with a range of rugby-themed inflatables such as try-line tussle, bungee run and passing targets, and there will be inflatables in the Supporters Village.
Tigers Travel Club have a limited number of places available on coaches travelling to the game, leaving Welford Road at 7.30am. Cost is £22 members and £25 non-members. Book through the Tigers ticket office by calling 0844 856 1880.