It's the opening night of rugby's Investec Champions Cup where Ronan O'Gara takes his La Rochelle team to Bath for an 8pm kick-off.
The Irish provinces will name their teams for the weekend later - with Hugo Keenan set to miss Leinster's game at Bristol with a wrist injury.
The full-back's expected to be out for up to a month, after picking up the issue in Ireland's win against Australia last weekend.
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