Chelsea manager, Antonio Conte, has refused to rule out a move for £53million Bayern Munich midfielder, Arturo Vidal.
The two men worked together at Juventus for three years between 2011 and 2014, winning three Serie A titles.
Speaking after the Blues beat Brighton 2-0 on Tuesday, Conte admitted that Vidal is a player you want to go to war with.
"I don't speak about players from other teams' card," he said.
"I must be honest, it's not right to talk about a player of another team. Especially if you try to link this player with us.
"But Arturo is a fantastic player, I have a great respect for Arturo, and we spent many years in Juventus together.
"If we go to war, I'd always want him with me."
Vidal's contract at Munich runs until 2019, but last month German magazine Kicker claimed he could be sold by the Bundesliga champions.