Rodney Ah You can play in Ulster's Pro12 game against Cardiff after he gets a one-week ban for his red card against the Dragons.
A late try by substitute John Andrew edged stuttering 14-man Ulster to victory over a battling Newport Gwent Dragons side.
Marcell Coetzee's knee injury is not as serious as initially feared and the Ulster back row will return for the new season.
Ulster forwards coach Allen Clarke will join Ospreys at the end of the season, replacing Chris Gibbes.
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Ulster continue their push for a place in the Pro12 play-offs with a 27-17 victory over Newport Gwent Dragons at Rodney Parade.
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