Here, they can not afford another slip in the super-tight Group F where even South Korea have a slim hope of progress despite losing two games.
They took the lead in Rostov-on-Don through Carlos Vela's penalty - the 14th of the tournament already - on 26 minutes after Jang Hyun-soo's handball.
Earlier, in Poland's opening game against Senegal, defender Thiago Cionek scored an own goal, attempting to block a shot from Idrissa Gueye and deflecting it into the net.
Fuming Sweden coach Janne Andersson accused Germany of "rubbing it in our faces" as they celebrated the dramatic late goal from Toni Kroos that gave them a 2-1 win in their crucial World Cup clash here. The views expressed therein are not necessarily those of stlucianewsonline.com, its sponsors or advertisers. Germany is the world's toughest team, the world champions, ranking No 1, but you never know.
Jerome Boateng is banned after a red card and midfielder Sebastian Rudy ruled out after breaking his nose in several places.
That equalled the best appearance by Mexico at a World Cup. We addressed this many times.
The Koreans were in sombre mood after the match only to arrive at the airport to learn the 94th-minute victor by Toni Kroos for Germany against Sweden had produced a lifeline.
Erdogan won the Turkish election after an unequal battle, monitors say
Ince told a rally on Saturday he would lift the state of emergency within 48 hours of being elected president. Recep Tayyip Erdogan addressed his supporters after claiming victory in critical elections .
For South Korea, they will be without captain Sung-yueng Ki for the game at the Kazan Arena after he picked up a calf injury.
FIFA has fined two German football federation officials for provoking Sweden's bench while celebrating victory in a World Cup game.
Sweden looked like it was going to cruise to a 1-1 draw against Germany and possession itself for the knockout stages, but it allowed a late goal to Toni Kroos.
Germany have won 15 of their last 17 competitive matches (D1 L1) since losing 2-0 to France at Euro 2016. We need to win and score more than two goals more than our opponents and that would be a clear path to the last 16.
I had my doubts about Germany before this tournament.
"When you threaten me, when you call me a "blatte" (a pejorative word for a dark-skinned foreigner), an "Arab devil", a "terrorist", "Taliban", then you have gone far beyond the limit", he said. If Loew wants power instead of speed in attack, he could hand Mario Gomez his first start of this World Cup.
"I think the atmosphere is relatively pleasant". It's all about timing and taking the pressure away with a big result.
"They have a lot of pace - especially up front", Reus told reporters. The chests will be puffed out now and we'll see a return to the Germany we all know.