Analysis: Four things we learned in Spain's Matchday 20

MADRID, Jan. 15 (Xinhua) -- Real Madrid won the Spanish Supercup in Saudia Arabia in convincing style over Barcelona. Although that meant a reduced fixture list in La Liga, there was still plenty to consider:

1. Real Madrid show their form and Barca's in Supercup final

Real Madrid's crushing 4-1 win over FC Barcelona in the Spanish Supercup final highlighted why they are runaway favorites to win La Liga t