Chelsea midfielder Juan Mata has concerns over the exodus of talent from the Spanish Liga. Mata quit Valencia 18 months ago to join the Blues.

"I worry a bit when seeing how many players are leaving the league. We only have two teams fighting for the title. The third, for four years, finished behind by 30 points.

"If you do not play at Barca or Real Madrid, you cannot win titles. It is impossible for my former club Valencia to win the championship.

"This is not good for the Spanish league."