By Tom Gott Liverpool are set to open talks with Porto over 22-year-old midfielder Alan Varela, a report has claimed. The Reds are expected to pursue a new midfielder during new manager Arne Slot’s first transfer window and have long been linked with a move for Varela, whose contract with Porto includes a release clause worth €70m (£60m). According to AS, Liverpool are now stepping up their interest in Varela and are expected to enter negotiations with Porto to try get a deal done. Porto are likely to stick to the release clause as Varela’s former employers, Boca Juniors, will take a percentag…