PLAYMAKER Nuri Sahin has pleaded for a reaction from Borussia Dortmund in tonight's Champions League tie at Shakhtar Donetsk after the Germans lurched to a 4-1 home defeat to Hamburg SV in the Bundesliga at the weekend.
Dortmund won the Champions League in 1997 and topped their group with ease earlier in this season's competition but they will need a much better display against a dangerous Shakhtar side than the one they served up on Saturday.
"It was a very painful defeat because we should not be letting in four goals at home," Sahin said. "We can make it all good again on Wednesday but we have to be very focused because Shakhtar are a team that will punish us if we make mistakes.
"There has to be a marked improvement in our performance," added Sahin who returned to the club last month following unsuccessful spells at Real Madrid and Liverpool.
The last 16 tie against Shakhtar is even more significant for Dortmund who won the Bundesliga in 2011 and 2012 and are highly unlikely to make it a hat-trick of titles now that they trail leaders Bayern Munich by 15 points.
The Germans travel to Ukraine without Kevin Grosskreutz who is nursing a suspected lung infection.
Fellow midfielder Ilkay Guendogan is also doubtful after missing Saturday's game with a thigh injury but coach Jurgen Klopp will have defenders Neven Subotic and Marcel Schmelzer available again after they missed the Hamburg debacle because of injury.
"Saturday was just one of those bad days. Tonight will be a different story, things will be better," said Klopp.
SHAKHTAR DONETSK v BORUSSIA DORTMUND, LIVE SETANTA IRELAND & SKY SPORTS 4 (KO 7.45)