Daniel Sturridge and Divock Origi
Sturridge and Origi are the leading contenders to spearhead the Liverpool attack against Dortmund. Getty Images

Liverpool manager Jurgen Klopp has refused to provide a clue as to who will lead his attack for the Europa League quarter-final second leg against former side Borussia Dortmund. Divock Origi began the first game at the Westfalenstadion, scoring a critical away goal in the first half, before being replaced by Daniel Sturridge for the Premier League win over Stoke City.

Sturridge marked his return to the first team with a first-half header, but the England international was upstaged by Origi after the break as the 20-year-old netted twice to help the Reds run away 4-1 winners at Anfield. The form of the attacking pair gives Klopp a selection dilemma for his side's biggest game of the campaign, but the German has played down the difficulty of the decision.

"There are always difficult decisions," he said, according to the Liverpool Echo. "This is more a moment where you can make no mistakes, because everyone is in good shape. It's only difficult for the players to accept. They feel good, they are confident, and if they are not involved then that's a problem. We have more than 16 players in good shape.

"It's not just about formation. We have different possibilities. No final decision until now. We have to make the decision. It's not about how many strikers you have on the pitch. Wait until tomorrow!"

Klopp confirmed in his pre-match press conference that Liverpool have no fresh injury concerns heading into the second leg, with captain Jordan Henderson still out with a knee injury and Christian Benteke also sidelined. Joe Gomez and Danny Ings are long-term absentees, while Jordan Rossiter is absent with a hamstring injury.

Origi's goal in Dortmund, which was later cancelled out by Mats Hummels' header, gives Liverpool the edge heading into the return fixture. However, Klopp says the away goal does not give his team complete control in the tie. "It makes a difference only if you get the right result in the second game," he added.

"Dortmund can score goals anywhere in the world. You can't just try to keep the clean sheet. Maybe after 85-89 mins the away goal will be relevant, but not earlier. It's an open game. The crowd is more of an advantage than the away goal. Only at 0-0 is it an advantage. If we win, we don't need it. This is a new start. We know about the quality of Dortmund. Now they know a little bit more about our qualities. We will see who handles it better."