Liverpool manager Jurgen Klopp has dismissed suggestions that his team are already through to the Champions League quarter finals.
The Reds marked their return to the knock out stages after a 9 year absence with an emphatic 5-nil victory over Porto in Portugal last night.
Sadio Mane scored a hat-trick.
Mohamed Salah, and Roberto Firmino were also on the score sheet.
The sides play the second leg at Anfield in three weeks time, and Klopp says the tie is far from over.
Real Madrid came from behind to beat Paris Saint Germaine 3-1 in the night's other last 16 first leg match.
Cristiano Ronaldo scored twice during the Bernabeu encounter, becoming the first player to record 100 goals in Champions League history.
Arsenal face freezing conditions in Sweden tonight, when they meet Ostersund in the first leg of their Europa League last 32 encounter.
Danny Welbeck is set to start up front as Pierre-Emerick Aubameyang is ineligible Alexandre Lacazette injured.
Celtic entertain Roberto Mancini's Zenit St Petersburg.
Celtic midfielder Scott Sinclair worked under the Italian at Manchester City.
He knows to expect a tough encounter.
