A first-half own goal from defender Rincon gave Valenciennes a winning start to the Ligue 1 campaign at newly-promoted Troyes this evening.
The Brazilian deflected Mathieu Dossevi's fierce shot into his own net 12 minutes before half-time at the Stade de l'Aube and the hosts could not find an equaliser.
Troyes mustered the first chance after eight minutes when Mounir Obbadi tried his luck from the edge of the penalty area - a low drive that forced Nicolas Penneteau to concede a corner.
Three minutes later VA were on the attack, Dossevi curling a shot from 25 yards which was saved by home goalkeeper Yohann Thuram-Ulien.
Thuram-Ulien was beaten after 33 minutes, though, when Dossevi dribbled into the area and unleashed a powerful drive which flew in off Rincon.
Penneteau had to be alert to preserve his side's lead seven minutes later, getting down well to keep out Obbadi's blast from the edge of the box.
Troyes created three further decent chances to equaliser after the interval, but could not capitalise.
First Obbadi's cross was met by substitute Marcos Dos Santos, whose low volley skimmed the post on its way out.
The top-flight newcomers were denied again when a quick throw-in saw Fabrice N'Sakala set up Jean-Christophe Bahebeck for a low drive that Penneteau blocked.
Three minutes after that, Julien Faussurier's perfect cross found Benjamin Nivet in space in the area, but his volley lacked control and Penneteau was in the right place to keep it out and ensuring a winning start for VA.