The Heineken Champions Cup returns to centre stage again this weekend with the cream of the continental rugby crop battling to join Leinster Rugby in the quarter-finals.
The four-time winners have a clean sweep of wins both domestically and in Europe to date this season.
They take on Lyon in Pool 1 at the RDS on Sunday chasing the highest ranking possible and a home quarter-final.
Meanwhile, Toulouse, Racing 92 and the Exeter Chiefs can all seal a place in the knockout stage by winning their Round 5 fixtures against Connacht, Munster and Glasgow Warriors respectively.
Highlights from Round 5 of the Heineken Champions Cup are as follows:
- Racing 92 have yet to lose a Heineken Champions Cup pool match at Paris La Défense Arena as they prepare to welcome Munster on Sunday for a ninth tournament meeting between the clubs. Munster need to upset the odds to stay in the hunt for a place in the last eight.
- The top two clubs in three of the pools go head-to-head this weekend including Exeter Chiefs who take their record of four wins from as many matches to Glasgow, however, the Gallagher Premiership front runners will be mindful that they were beaten 28-21 when they last visited Scotstoun in the 2017/18 season.
- Saracens meet Ospreys for the seventh time in European competition on Saturday,. The holders have won five of their past meetings, but were held to a 15-15 draw at the Liberty Stadium two seasons ago.
Nine of the Challenge Cup fixtures take place on Saturday with head-to-heads between the top two clubs this weekend in all five pools.
Only one point separates Bordeaux-Bègles and Edinburgh Rugby at the top of Pool 3 and while the TOP 14 pacesetters are the leading points scorers (162) in the tournament after four rounds, they will be looking for their first victory over the Scottish club at the fourth time of asking when the clubs meet at Stade Chaban-Delmas on Saturday.
Bristol Bears, RC Toulon and Leicester Tigers have all won four matches to date and can seal their places in the knockout stage with wins over Brive, Scarlets and Cardiff Blues respectively.