Liverpool to pursue more transfers from South America following confirmation of Roberto Firmino deal

Liverpool chief executive Ian Ayre will remain in Chile for another 24 hours as the club seek to step up their transfer business following the signing of Roberto Firmino, ITV reports.

On Wednesday 24 June Liverpool confirmed they have signed the 23-year-old Firmino from Hoffenheim, with BBC Sport suggesting the player has penned a five-year that has cost the club £29m ($45.5m).

The forward is currently representing Brazil at the Copa America in Chile but agreed to the deal – which is subject to a medical – when Ayre flew out to finalise the move.

While Firmino is club's fifth transfer of the summer transfer window, Liverpool have kept costs down with three players – James Milner, Danny Ings and Adam Bogdan – all to arrive on free transfers and Charlton Athletic teenager Joe Gomez costing a reported £3.5m.

PA suggests the club still have funds set aside for a new striker, with Sevilla and Colombia star Carlos Bacca and Venezuela international Solomon Rondon – currently at Zenit St Petersburg – still being considered, according to the Daily Telegraph.

With both players still in Chile to represent their nations in the knockout stages of the Copa America, Liverpool will keep staff posted in the country. Ayre himself will remain there for another 24 hours.

Bacca, who crowned the 2014-15 season with Europa League success with Sevilla, has a release clause of £21.3m. Liverpool can activate that release clause, but Sevilla's sporting director Monchi has told Spanish daily AS they will do all they can to convince the striker to stay.

Asked during an interview with AS how Sevilla are going to convince Bacca and coveted midfielder Grzegorz Krychowiak to stay if other clubs offer them to double his wages, Monchi responded: "That's part of our job."

"It would not be the first time it happens and not the last one. We play with that and it's part of my job to convince the player that €1 is more worthy than €2 somewhere else. I am relatively unworried [about Bacca and Krychowiak leaving the club].

"Bacca is happy at Sevilla and in Sevilla. He is well considered all round but if someone comes to sign him I have sufficient elements to convince him to stay. And Krychowiak is a guy who has very clear his plans and his interest to leave Sevilla at this moment is zero."