Guy Easterby's Leinster also went down in their opening game - losing 22-19 in Glasgow - before bouncing back to defeat Cardiff Blues 34-23 on home soil.
And after defeating one Welsh side the Leinster boss hasn't been shy in calling in a favour from another in a bid to record his side's first back-to-back successes - and first away win - of the new campaign.
"I spoke to my brother about it and he said Llanelli were ahead but there were 5,000 really passionate supporters there who really got behind them when they got back into it," said Easterby.
"This year, particularly at home, Treviso are trying to make a name for themselves. They are a big, physical side."
Mike Ross, who has won two caps for Ireland, is set to recover from a calf strain to face Treviso, while Gordon D'Arcy, Rob Kearney and Rhys Ruddock are all expected to return from their extended break following international commitments this summer.