Ulster assistant Allen Clarke prepared for Oyonnax 'conundrum'

Ulster assistant coach Allen Clarke says the Irish province must "expect the unexpected" when they travel to France to face Oyonnax in Sunday's European Champions Cup Pool 1 game.

The Top 14 side have struggled for form this season and have lost their opening three group games in Europe but defeated Stade Francais in their last home game a fortnight ago, leading Clarke to describe them as a "conundrum".

"We have to focus on getting our own basics right, our systems, our attack and our defence, and we must back ourselves," said Clarke.