Borussia Dortmund defender Matthias Ginter has warned his team-mates against complacency when they host Odd BK in Thursday's second leg of their Europa League play-off.
The German outfit won 4-3 in Norway last week, despite going three down and are now favourites to progress to the group stages.
Thomas Tuchel's side has enjoyed an impressive start to the campaign, winning six of six games in all competitions and scoring 20 goals in the process while keeping five clean sheets.
However, Ginter wants no surprises and said on his club's official website: "We have to be wide awake from the very start.
"It's the same for every game.
"We now know how they play."
Southampton travel to Denmark needing to score against Midtjylland to progress to the next round.
Ronald Koeman's men were held to a 1-1 draw at St Mary's last week, but doubts surround the futures of key players Sadio Mane and Victor Wanyama, with the latter left out of the travelling squad.
Spanish Super Cup winners Athletic Bilbao must overturn a 3-2 deficit in Spain against Slovakian side Zilina
Fernanbahce and Ajax lead 1-0 heading into their return legs at Jacblonec and against Atromitos, respectively.
Dutch side AZ threw away a two-goal lead in Romania and host Astra trailing 3-2.
Red Bull Salzburg must overturn a 2-0 deficit when they square off against Dinamo Minsk in Austria while Standard Liege also trail 2-0 ahead of their home match against Molde.
Rosenborg, Viktoria Plzen and Lech Poznan hold 3-0 leads heading into their games against Steaua Bucharest, Vojvodina and Videton.
PAOK and Krasnodar are firmly in control of their ties after their 5-0 first-leg victories against Brondby and HJK, respectively.
Ligue 1 side Bordeaux makes the journey to Kazakhstan with a 1-0 advantage over Kairat while Saint-Etienne must score at home after a 1-1 away draw against Moldova's Milsami.
Panathinaikos host Qabala with all to play for after a goalless result in their first leg encounter.
Rubin Kazan drew 1-1 against Rabotnicki last week and are at home.
Sparta Prague travel to Switzerland looking to defend their 3-1 lead over Thun.
Belenenses, Qarabag, Legia Warsaw and Slovvan Liberec take on 1-0 advantages heading into their return legs against Rheindorf Altach, Young Boys, Zorya and Hadjuk Split.
