Spain coach Luis de la Fuente praised Lamine Yamal after his first appearance at a major tournament on Saturday and talked up the teenager's potential to become a great player.

Yamal, at 16 the youngest player to appear at the European Championship, assisted defender Dani Carvajal for the team's third goal and almost got on the scoresheet in the second half, only for Croatia keeper Dominik Livakovic to pull off a superb one-handed save to deny him.

"Yamal is impressing everyone and going up through the levels," De la Fuente said after Spain's 3-0 thrashing of Croatia in the Group B game.

"He has to keep improving every day, and over time, he will become a wonderful footballer," the coach added.

Yamal was happy with his performance. "I'm very happy for the win, for the debut and now we change our focus to the next game. In the end, the team wants to play inside and I'm here to help the team, to defend, whatever it takes," the youngster said.

"We are a very efficient team because the work we've put in over the last few months has shown today (Saturday)."

At 16 years and 338 days old, Yamal still has plenty to work on if he is to match the likes of Player of the Match Fabian Ruiz, who created one goal and scored another.

"He (Fabian) is at the top level. Based on what we see from him on a daily basis, he's fantastic. He has brilliant technique," De la Fuente said. "We should recognise the quality that he has. He has real imagination."

Fabian ran the show in midfield, playing in Alvaro Morata for the opening goal and adding a second himself three minutes later.

"I think the team did a great job. We achieved what we set out to do. Ultimately, we worked very hard for it and it's important that we performed as a team.

"It was really important to start with a win. We knew we were up against a really good team with strong individual players," Fabian said.

"I don't know if we're the favourites or not but we will fight until the end to try to get to the final," he added.

Captain Morata highlighted the importance of keeping the tempo up from the very beginning. "We pressed high with a relentless pace from the beginning and it worked in our favour against a great team. That's what we have to do, start the game pressuring and cornering our rivals.

"I thought the team looked good. Now we have to think about the next one."

Spain next play Italy, who too began with a win, while Croatia take on Albania.