Pulled off a few quality stops in a bid to repel Madrid and cannot take the blame for either of the goals that he conceded.
Given the slip on a handful of occasions, but he always fought to recover his ground and put in a solid shift in the end.
Hardly put a foot wrong at the back and often dropped deepest to defend on the line.
Could have tracked Dani Carvajal better during the build-up to Madrid's equaliser, but showcased a lot of attacking intent at the other end of the field.
Strong and uncompromising at the back and, though his defending was a little risky, luck was one his side on one or two calls.
His late runs from a deep central position spelled trouble for the opposition defenders and one such sequence saw him cause panic in the box, leading to the events of the opener.
Elusive out on the left and a darting run inside the box saw him arrive at the perfect time to sweep home the opening goal of the game. Another driving run, this time on the ball, was instrumental in laying on Villarreal's second. A menace throughout.
Very resourceful out wide, always able to play in a team-mate with a pass or cross. Ramos was forced into increasingly aggressive measures to contain him.
Worked his socks off in the middle of the park, contributing in both halves of the field. Dovetailed well with Bruno.
G. dos Santos
Pulled the defence out of position often with his movement across the front line and linked well with Pereira in attack. Very hard to track when he was in the mood.
Showed absolutely no fear when running right at the defence with the ball, and caused constant havoc with his ability to both create and get on the end of danger. Denied a goal more than once by good keeping from Diego Lopez.
Hard to fault him for either goal, as he pulled off a string of fine one-on-one saves to keep his side in the contest.
A bad giveaway early on set the tone for his evening, as he was pulled all over the place by the opposition.
Made a solid interception on Giovani Dos Santos' dangerous trek into the box early on and delivered a lovely raking ball across the goalmouth for Gareth Bale to tap home his side's first-half goal.
A few good defensive plays were marred by a reckless approach and he was found out of position too many times.
Found it hard to keep tabs on Aquino out wide and was clearly not ready for the intensity that Villarreal brought to his doorstep.
A decent enough debut from the midfielder, who was nevertheless rattles at times by the ferocity of the opposition.
Helped to facilitate Madrid's first-half leveller with a clever slipped pass that picked out the run of Carvajal perfectly. Was effective distributing the ball today.
Not quite himself in the hole, as the dominance of the ball by Gareth Bale and Cristiano Ronaldo saw him on the periphery at times.
Unspectacular leading the line and, though his shot did force Asenjo to parry into Ronaldo's path for one of his side's goals, he just did no offer enough.
Came up with a timely goal on the rebound, but it was far from a vintage display, as most of what he tried did not come off.
It was not the most swashbuckling debut from the Welsh winger, but the world's most expensive footballer did manage to get his name on the scoresheet with a close-range finish. Subbed after an hour.