According to The Sun, fellow Barcelona player Gerard Pique and his girlfriend Shakira have turned down the invitation to attend Messi's wedding because of some bad blood between the songstress and the bride-to-be.
Both Shakira and Messi's girlfriend reportedly haven't been on good terms since Pique broke-up with his ex Nuria Tomas and moved on with the pop star.
But while Fabregas will nearly certainly be in attendance to see Messi and Antonella get married, Pique will not.
The two love birds met (Pique and Shakira) met the singer when he was still in a relationship with Tomas, when he appeared in her music video Waka Waka, the official song of the 2010 World Cup held in South Africa.
That she still has a close friendship with Tomas has apparently created friction between herself and Shakira.
Explaining how his relationship with Shakira blossomed, Pique told TV3 in October: "I met Shakira in Madrid, when we were preparing for the 2010 World Cup, and after appearing in the Waka Waka video". She was already there because she sang in the opening ceremony and I asked her what the weather was like.
Well as a result, both Pique and Shakira have been left off the invite list to prevent any potential animosity.
"But she started telling me what the weather was like in every single moment and it got to the point where I told her we would have to get to the World Cup final to see her again - she was singing at the final".
But it appears the issue has not affected the Barca stars on or off the pitch.
'We have become used to this and we think it's normal, but we know that when he stops playing these things will be hard to repeat'.