By ESPNSTAR.com staff
Having left La Liga side Valencia to sign for Chelsea last season, Mata is one of many Spanish players that have chosen to depart their domestic league after years of struggling to put an end to Real Madrid and Barcelona's domination of silverware.
Although Atletico Madrid have kept pace with Barcelona so far this season, the midfielder believes that the other sides still struggle to compete with Barcelona and Real.
"I'm a little worried to see so many players leave the Spanish Liga, for the competitiveness of the league, we have two teams fighting for the title, and the third, for four years, ends 30 points [behind] the champion," Mata said to France Foot.
"If you don't play for Real or Barca, you can't win a trophy. Today, it's impossible for my former club Valencia to win the championship. This cannot be good for Spanish football. Supporters of other clubs also suffer."
Mata admitted that he left Valencia to seek a better chance of winning trophies, and was delighted to have succeeded in his quest with Premier League side Chelsea.
"It was my first season in England and [success] arrived very quickly. I immediately found my marks with my team-mates. I had the chance to score a goal in my first game and after that I enjoyed myself," Mata shared.
"I came to Chelsea because I wanted to win trophies, and for my first year, I won two trophies, with the first Champions League of the club's history. I said: 'how can you be so lucky?'"
Despite his concerns for La Liga, the 24 year-old believes some good could come from the increasing migration of Spanish players.
"We offer something different than what people expect of English football, which is very physical. Spanish football has a great period with all these trophies, which we enjoy," Mata stated.
"We want Spanish players in other major championships, and suddenly we discover other [styles of] football - that is a means to progress."
Chelsea travel to White Hart Lane to take on Tottenham for their next Premier League fixture.