Liverpool are weighing up a swap deal for Benfica striker Oscar Cardozo which would see misfiring forward Iago Aspas head in the opposite direction, [football] direct news understands. A source close to Anfield told FDN boss Brendan Rodgers is keen to bolster his strikeforce in preparation for next season’s Champions League campaign, as he lacks cover for free-scoring duo Luis Suarez and Daniel Sturridge. Aspas was brought in last summer from Celta Vigo in order to provide competition for places in the final third of the pitch but the 26-year-old has flopped and is now surplus to requirements. He has never scored a goal in the Premier League and his only strike in a Liverpool shirt came in an FA Cup victory over League One outfit Oldham Athletic. Rodgers remains hopeful of pulling off a swoop for Cardozo for a relatively modest fee, as the Paraguay international has only two years remaining on his contract with the Portugese giants and an extension is yet to be thrashed out. One of his eight goals for Benfica last season came in the impressive 3-1 victory over Tottenham Hotspur in the Europa League, with the 30-year-old opening the scoring at White Hart Lane.