Sale were rocked by three second-half tries as they slipped to a 33-18 Heineken Cup defeat against Montpellier at a rain soaked Stade Yves du Manoir.
The Sharks had only trailed 12-8 at half-time, with Mark Cueto touching down for the only try, but they had no answer to the brilliance of Francois Trinh Duc in the second period.
The France fly-half scored his side's first try on 51 minutes before two moments of brilliance set up another two scores in a decisive 10-minute burst.
Trinh Duc twice deftly kicked over the Sharks line, the first allowing Timoci Nagusa to race over, before the outside half re-gathered his next kick and expertly spotted Julien Tomas to score.
That left Sale, who won a tense opener 34-33 against the Cardiff Blues, with too much to do over the final 20 minutes although Richie Vernon did grab a late consolation try.