Ulster say they are taking "every possible step" to ensure their Kingspan Stadium pitch is playable for Saturday's Heineken Champions Cup match against holders La Rochelle.
With freezing temperatures forecast over the coming days, there have been suggestions the match against the French side could be moved.
Instead, Ulster are using frost covers and heaters to help preserve the pitch.
The northern province lost 39-0 away to Sale in their Champions Cup opener.
"The club is in regular contact with tournament organisers EPCR, and we will provide daily updates for supporters via our social media channels," Ulster said in a statement.
Following Saturday's heavy defeat at Sale, Ulster need to beat Ronan O'Gara's La Rochelle to boost their hopes of progressing in the competition.
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