Analysis: Four things to look out for in Spain's matchday 30

MADRID, April 4 (Xinhua) -- The 30th round of matches in La Liga come with the title race again reduced to a head-to-head between FC Barcelona and Real Madrid, while there is a key game between Villarreal and Athletic Bilbao as the race to qualify for Europe next season widens. Here are four things to look out for this weekend in Spain.

1. Barcelona running on empty against in-form Betis?

FC Barcelona pla