Manchester United stars attend birthday bash of midfielder
David de Gea, Ander Herrera, Marcos Rojo, Guillermo Varela, Morgan Schneiderlin and Matteo Darmian were some of the teammates present at the dinner.
It seems the midfielder got reflective as he approached his birthday.
Mata, who signed for Manchester United from Chelsea for a reported £37 million in 2014, is believed to earn around £150,000 per week.
"Football is very well remunerated at this level. It's like we live in a bubble. Compared to the rest of society, we earn a ridiculous amount. It's unfathomable," Mata said in an interview on Spanish television programme 'Salvados', broadcast on Sunday.
"With respect to the world of football, I earn a normal wage. But compared to 99.9 percent of Spain and the rest of the world, I earn a silly amount."