Borussia Dortmund and Celtic, who both emerged victorious from their opening matchday, will square off in the Champions League on Tuesday night in Germany.
The Scottish champions have won all of their games so far this season, but they will face their hardest test yet in Dortmund, where the home team has been scoring goals in large quantities lately.
The runners-up in the Champions League from the previous season got off to a great start in the Jan Breydel Stadion, defeating Club Brugge three goals to none.
After making a big impression as a substitute in Belgium with a late brace, Serhou Guirassy, the team's standout striker, put the game away with a stoppage-time penalty.
Dortmund has made it to the knockout stages in all but two of their previous 11 seasons, and under new manager Nuri Sahin, who took over for Edin Terzic in the summer, that will be their goal once more.
The 36-year-old former BVB midfielder is the youngest manager participating in the Champions League this year, but other than his victory in Bruges, his reign has not been very successful.
Sahin's team was extremely lucky not to be behind three goals in Friday's Bundesliga match against Bochum, after losing 5-1 to Stuttgart a week earlier. Guirassy scored twice and Karim Adeyemi contributed two assists to turn the tide of the match.
Dortmund has scored ten goals in three home games this season, despite their questionable defense. In addition, they have only lost three of their previous 17 European home games.
Die Schwarzgelben will now play a former European champion. They have already faced off twice in the UEFA Cup, with Die Schwarzgelben winning both matches after two legs.
Not only have Celtic failed to defeat Borussia Dortmund thus far, but they have also never prevailed in a competitive match in Germany, where they have dropped nine out of the previous eleven games and each of the previous four.
The Bhoys have won all nine of their games this season, scoring 33 goals and giving up only four goals, so they will go there this time in excellent form.
Following their 6-0 thumping of St Johnstone in the Scottish Premiership last time out, Brendan Rodgers' team has now scored 16 goals in their past three games across all competitions.
The high point of that run was undoubtedly at Parkhead, where Celtic scored four goals in the second half of their league-phase match against Slovan Bratislava, winning 5-1, their largest Champions League triumph to date.
Since a 3-3 draw with Aberdeen in the Scottish Cup semifinals in April, they have won 15 straight games; even in that match, they prevailed 6-5 on penalties.
Celtic's goal will now be to advance to the Champions League knockout stages for just the fourth time. However, they must also improve their miserable away record in continental play, having lost nine of their previous 11 European away games and winning just one.
