Villarreal's Spanish league title credentials will be tested when it plays at defending champion Barcelona this weekend, while Spanish leader Real Madrid is at Sporting Gijon.
Third-place Villarreal's impressive start has it on the heels of the leaders, sitting three points adrift of Madrid and two off Barcelona after 10 games.
But Saturday's match at the Camp Nou offers the best test of whether or not the "Yellow Submarine" can prevent the title race from coming down to a Barca-Madrid fight for the fourth straight season.
Villarreal has strikers Giuseppe Rossi, Nilmar and Jozy Altidore in goal-scoring form, but it could be without defensive midfielder Marcos Senna through injury.
Barcelona will miss injured defender Gabriel Milito.