2010–11 Heineken Cup
The 2010–11 Heineken Cup was the 16th season of the Heineken Cup, the annual rugby union European club competition for clubs from the top six nations in European rugby. It started with three matches on 8 October 2010 and ended on 21 May 2011 with the final at Cardiff's Millennium Stadium where Leinster beat Northampton Saints 33 – 22.
Teams
The default allocation of teams is as follows:- England: 6 teams, based on performance in the Aviva Premiership and Anglo-Welsh Cup
- France: 6 teams, based on regular-season finish in the [2009–10 2009–10 Top 14 season|Top 14 season|Top 14]
- Ireland and Wales: 3 teams each, based on regular-season finish in the Celtic League
- Italy and Scotland: 2 teams each, based on participation in the Celtic League
Because 2010 Heineken Cup winners Toulouse were already qualified for this season's Heineken Cup by virtue of their fourth-place regular-season finish in the 2009–10 Top 14, the extra place for France went to seventh-placed Biarritz. Because Amlin Challenge Cup winners Cardiff Blues were already qualified for the Heineken Cup by finishing second among the four Welsh teams in the 2009–10 Celtic League, the extra Welsh place went to the lowest-placed Welsh team in the league, Scarlets.
Seeding
The seeding system was the same as in the 2009–10 tournament. The 24 competing teams are ranked based on past Heineken Cup and European Challenge Cup performance, with each pool receiving one team from each quartile, or Tier. The requirement to have only one team per country in each pool, however, still applies.The brackets show each team's European Rugby Club Ranking at the end of the 2009–10 season. Aironi inherited the ranking of Viadana, the principal shareholders in the new Celtic League team.
| Tier 1 | |rugby unionPool stageThe draw for the pool stage took place on 8 June 2010.Under rules of the competition organiser, European Rugby Cup, tiebreakers within each pool are as follows.
Seeding and runners-up
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