Luiz Gustavo scored in stoppage time 0 over Wolfsburg on Saturday at Volkswagen Arena.

Bayern lost its season opener against Monchengladbach in Munich, 1-0, and came under fire after the result. The visit to Wolfsburg presented a challenge, but Gustavo - who earned his first cap for Brazil on Wednesday - netted the match-winner to steal three points on the road.

"Every player has to keep on believing in victory until the very end," Gustavo said, "even when the 90 minutes are up.

"It was a very important win."

Wolfsburg opened its season with a 3-0 win at Cologne, and played well early against Bayern. Patrick Helmes looked to have fired the hosts into the lead in the first half, but his goal was wrongly called back for offside.

Bayern Munich controlled most of the possession but struggled to put Wolfsburg goalie Diego Benaglio under pressure, as he saved just three shots through 90 minutes.

But Bayern winger Franck Ribery, making his first start of the season, set up the stoppage-time goal, and Gustavo converted with a left-footed shot to the bottom-left corner in the closing seconds.

"That's football, unfortunately," Helmes said. "I think we played well for 90 minutes, we were the better team, and we'd have deserved to win - and then we've conceded a silly goal in the last minute."

Hoffenheim 1, Borussia Dortmund 0

Sinsheim, Germany - Defending champion Borussia Dortmund was brought back down to earth at Rhein-Necker-Arena, as Sejad Salihovic scored in the ninth minute to give Hoffenheim a 1-0 win Saturday in the Bundesliga.

Dortmund opened the season with a dominant 3-1 win over Hamburg, but failed to match the performance despite controlling a lion's share of the possession.

Hoffenheim bounced back from a 2-1 defeat at Hannover for its first victory of the season.

Hannover 2, Nurnberg 1

Nurnberg, Germany - Mohammed Abdellaoue and Konstantin Rausch scored inside the half-hour mark and Hannover beat Nurnberg, 2-1, on Saturday at EasyCredit-Stadion to remain perfect after two Bundesliga matches.

Abdellaoue scored in the 16th and Rausch followed in the 27th and Hannover was able to hold on for the road win. Hannover edged Hoffenheim, 2-1, in its first match last week, and sits second in the standings.

Tomas Pekhart scored after half for Nurnberg, which failed to build on its 1-0 win at Hertha Berlin last week.

Schalke 5, Cologne 1

Gelsenkirchen, Germany - Klaas-Jan Huntelaar scored a hat trick as Schalke won 5-1 over Cologne at Veltins-Arena on Saturday to rebound from a season-opening loss to Stuttgart in the Bundesliga.

Schalke lost 3-0 at Stuttgart last week, and fell behind against Cologne when Lukas Podolski scored after 12 minutes. Huntelaar responded from the penalty spot just before halftime, scored again after the break and completed his hat trick six minutes from time.

Raul and Lewis Holtby also scored for Schalke. Cologne is the only side with a pair of losses with two matches left in Week 2 on Sunday, and sits last in the standings with minus-seven goal differential.

Mainz 2, Freiburg 1

Freiburg, Germany - Marcel Risse and Maxim Choupo-Moting scored after half as Mainz top Freiburg, 2-1, at Badenova-Stadion to remain perfect after its first two games of the Bundesliga season.

Mainz downed Bayer Leverkusen, 2-0, last week and sits atop the Bundesliga, as Hannover is the only other club with two wins after two matches.

Risse opened the scoring in the 64th, and Choupo-Moting followed in the 79th for Mainz, which opened last season on a record eight-match win streak.

Freiburg earned a 2-2 draw at Augsburg last week, so it remains winless after two games.

Hamburg 2 Hertha Berlin 2

Hamburg, Germany - Andre Mijatovic scored in stoppage time and Hertha Berlin escaped HSH Nordbank Arena with a 2-2 draw against Hamburg on Saturday for its first point of the season.

Hertha lost at home last week to Nurnberg in its first match since earning its way back to the Bundesliga. Tunay Torun also scored against Hamburg after half as the Berlin club battled for a result.

Mladen Petric and Heung-Min Son scored for Hamburg, which lost its opener last week to Borussia Dortmund, 3-1.

Monchengladbach 1, Stuttgart 1

Monchengladbach, Germany - Monchengladbach followed its season-opening win at Bayern Munich with a 1-1 draw against Stuttgart on Saturday at Borussia-Park, as Filip Daems converted a penalty kick in the second half.

Cacau scored in his second straight match for Stuttgart, which failed to add to its 3-0 win over Schalke last week in its Bundesliga opener.