There is no love lost between the Portuguese tactician and the La Liga giants.
While 50-year-old trophy magnet Jose Mourinho enjoyed a four-year spell at Barcelona between 1996 and 2000, working as an assistant and translator to affable Englishman Sir Bobby Robson prior to a service alongside blunt Dutchman Louis van Gaal, he by no means retains any admiration for the Catalan outfit.
Continually taunted by Barcelona fans as their translator whenever one of his teams faces them, Mourinho was also criticised by last season's La Liga winners for having 'damaged' Spanish football.
It has not all been one-way traffic. Mourinho has criticised Barca star Lionel Messi for having learned 'play-acting' there, was outspoken over how his Chelsea and Internazionale teams seemed to finish games against the club with ten men while a victory over the Camp Nou club empassions him perhaps more than a win over any other team.
Can you really envision him doing business with them? After all, the four-time Champions League winners have a strong interest in strong Blues centre back David Luiz, a player his international team-mate Daniel Alves would relish joining him in Spain.
'I would be very happy if David Luiz came to Barcelona,' Alves is quoted to have said by multiple sources. 'I always want the best for my friends and I recommend them to go to Barcelona whenever the opportunity arises. David is not only a friend, but also has a lot of qualities.'
He continued: 'The problem is I do not think Jose Mourinho will let him join us. It would mean that he makes us even stronger. It is incredibly difficult, almost impossible.'
Luiz has been subject to two transfer bids but, thus far, Chelsea have been firm on their stance and denied Barcelona the opportunity to negotiate personal terms with one of the star defenders of this summer's Confederations Cup tournament.
At 26, Luiz has already enjoyed a title-laden career at Chelsea despite having only been at the club for two and a half seasons. During that spell, he has won the FA Cup, the Europa League and the Champions League.
When asked whether he'd swap England for Spain, he snapped at Globo Esporte, saying: 'You [the media] can try everything, but you won't get anything from me.'
What do you think? Will Mourinho allow Barcelona to buy Luiz or will he block the deal because of his animosity toward the club?
image: © Ben Sutherland