Lazar Markovic is set to undergo a medical ahead of a £19.8 million move to Liverpool, Goal understands.
Markovic was originally scheduled to fly in to Merseyside on Thursday after the Anfield outfit agreed to pay the £19.8m release clause in the player's contract.
But the transfer is now set to be completed at the start of next week as Liverpool push ahead with summer recruitment plans following the £70m sale of Luis Suarez to Barcelona.
Markovic, who turned 20 in March, was part of an impressive forward line which helped Benfica to a place in the Europa League final last season, but did not play in the penalty shootout defeat to Sevilla after being sent off from the bench in the semi-final against Juventus after an altercation with Mirko Vucinic.
Liverpool are also close to completing deals for Southampton centre-back Dejan Lovren and Belgium international Divock Origi, Goal understands.
The Merseyside club has already signed Saints pair Adam Lallana and Rickie Lambert, and former Bayer Leverkusen midfielder Emre Can.
Brendan Rodgers is bolstering his squad as the club aim to maintain last season's Premier League title challenge while competing in the Champions League.