Leinster maintained their unbeaten league record with an 11th straight success in a hard-fought 22-19 win over Ospreys in Swansea.
Leinster, without the services of 18 players on Six Nations duties with Ireland, were far from their best, but dug in to repel a spirited performance from Ospreys.
Luke McGrath, Charlie Tector and Rabah Slimani scored their tries. Ciaran Frawley kicked a penalty and a conversion, with Ross Byrne adding a conversion.
Harri Deaves, Ethan Lewis and Cameron Jones scored Ospreys’ tries, with Owen Williams and Jack Walsh each adding conversions.
Welsh hooker Sam Parry was a late withdrawal through illness and his side suffered a further setback when Leinster…