Valencia interim coach Voro Gonzalez says he hopes to turn around the club's fortunes in a hurry.
La Liga president Javier Tebas has announced his resignation from his post via Twitter.
Barcelona's attacking style and Atletico's defensive strength figure to yield a typically riveting match of rivals on Wednesday, Mike Goodman writes.
"I feel proud of a club like Barcelona that we are of interest for Harvard Business School," Bartomeu said.
Barca announced in May that they had agreed a new five-year deal with Busquets, with the option of a further two-year extension for the midfielder.
Real Madrid will face Club America or the winners of the AFC Champions League in the semifinals of the 2016 FIFA Club World Cup.