Liverpool right back Conor Bradley is set to miss the remainder of the season with a significant knee injury suffered at Arsenal on Thursday night. The Northern Ireland international will undergo surgery in the coming days after going down in the late stages of the 0-0 draw at the Emirates, an incident which caused ligament and bone problems. Should Northern Ireland qualify for the World Cup in the play-offs, there is a chance Bradley could make it – but it is far too early to put a specific timeframe on his recovery. Conor Bradley suffered his knee injury in the closing stages of Liverpool's 0-0 draw at the Emirates on Thursday nightGabriel Martinelli sparked a mass confrontation by trying to push an injured Bradley off the pitchIt also is a timely blow for Liverpool who also have young centre back Giovanni Leoni out for the season. Striker Alexander Isak is also a long-term absentee while Mohamed Salah is away at the Africa Cup of Nations.