Barcelona will demand a big fee from Chelsea for Pierre-Emerick Aubameyang even though he joined the club on a free transfer earlier this year, according to reports.The west London club are keen to add more firepower to their frontline before the transfer window closes after loaning Romelu Lukaku back to Inter and selling Timo Werner back to RB Leipzig.That has seen them linked with an unexpected move for Aubameyang, with manager Thomas Tuchel doing little to play down the speculation.The German coach worked with the Gabon international at Borussia Dortmund and has been speaking this week about the ‘close bond’ they still share.Aubameyang only moved to Camp Nou in February of this year, with Arsenal having agreed to rip up his rumoured £350,000-a-week contract on deadline day so he could join Barca after the window had closed.After a frustrating time at Arsenal in the first half of the 2021-22 campaign, which was punctuated with disciplinary issues and saw him lose the captaincy, Aubameyang enjoyed a resurgence at Barca.The 33-year-old netted 11 goals in 17 La Liga appearances, helping the side finish second despite having been in a battle just to qualify for the Champions League when he joined.But the arrival of Robert Lewandowski has pushed Aubameyang down the pecking order and he only came on for the final eight minutes of Barca’s goalless draw with Rayo Vallecano on Saturday.Barcelona – who still have not registered Jules Kounde due to their financial issues – are believed to be keen to offload the forward, with the terms of his contract meaning he is now on a far bigger salary this season than he was in the previous campaign.Despite Barca’s openness to selling Aubameyang, reliable Spanish journalist Gerard Romero,