The January transfer window opens in less than a month’s time and clubs across Europe will be busy identifying targets, holding talks with agents, and putting in place future deals. As a result, the rumour mill never stops. So we asked our friends at Football Whispers to round up all the latest news, views and gossip from across the continent.Transfer CentreJanuary transfer window – key datesSpainCristiano Ronaldo has told several former Real Madrid team-mates that he regrets leaving the Spanish giants for Juventus and believes he would have won the 2018 and 2019 Ballon d’Or had he still been at the Bernabeu. (ABC) Real Madrid must make close to £170m in player sales in order to balance their books for the 2019/20 campaign and avoid FFP sanctions. They will look to offload James Rodriguez, Gareth Bale, Mariano Diaz and Brahim Diaz in January. (Marca)Julian Nagelsman dreams of one day taking charge of Barcelona. The 32-year-old RB Leipzig boss has been linked with a number of top European clubs over the past year and could be considered to replace Ernesto Valverde. (Mundo Deportivo)Barcelona and Inter Milan will hold talks over a potential deal for Arturo Vidal this week when the two…