Cahir replaced Paddy McCarthy on 42 minutes at Aviva Stadium after he sustained what the province has since described as a "serious foot injury".

Porter could be absent for a couple of months after suffering a calf injury in training, while McCarthy suffered a foot injury during Leinster's win over La Rochelle last weekend.

Dan Sheehan captains the hosts, who haven't lost to the Westerners since 2021.

Harlequins trailed only 24-21 after an hour, but Leinster dominated the final quarter to break clear and eventually scored seven tries.

Ireland face a difficult task in Portugal, while three Irish provinces are in URC action.

The sanction will be reduced to three games, subject to the Ireland and Leinster player successfully completing a coaching intervention course.

Northampton Saints will take on Leo Cullen's side from 5:30pm

The four-time tournament winners cruised into this season’s quarter-finals, with a home tie awaiting them on Friday.

Leinster will take on Harlequins with Ulster facing a tough task when they take on top seeded side Bordeaux Bègles

Leinster, who have finished runners-up in the Champions Cup in each of the past three seasons, progress to the last 16 as group winners with a 100 per cent record

So far, the FA Cup game is goalless while Leinster lead against La Rochelle in the Investec Champions Cup.

Leo Cullen has named 12 Irish internationals in his starting 15, as they seek to maintain their 100 per cent start to the season.

In September, the Football Review Committee produced an update to its proposed rule enhancements to the game, which include a 1-v-1 throw-in to start a game, instead of two players from each team.

Tries from Chris Farrell and Calvin Nash had the hosts up at the break.

There were just under 12 and a half thousand second-hand homes for sale across the country in July, according to new analysis by MyHome.ie

The affected counties includes all of Leinster along with Cavan, Monaghan, Leitrim, Roscommon, Tipperary and Waterford.

Met Éireann has warned of very difficult travelling conditions in areas affected by thunderstorms

Leo Cullen’s men have lost the last two Champions Cup finals in agonising fashion.

Glasgow’s bonus-point win over Zebre Parma earlier sees them hold a four-point advantage at the top of the table with just three rounds to go

Leinster beat Ronan O'Gara's La Rochelle side 40-13 at the Aviva

St Patrick's Athletic face Bohemians in the FAI Cup Final at the Aviva