Reigning champions Spain took a significant step towards sealing their place at Euro 2016 with a 1-0 over Ukraine on Friday.

Alvaro Morata scored the only goal of the game midway through the first-half on his full competitive debut with the senior side after latching onto Koke's excellent through ball.

Victory moves Spain three points clear of Ukraine in second place in Group C, but they remain three points adrift of Slovakia who were 3-0 winners over Luxembourg on Friday.

A prolific scorer at under-21 level, Morata was given his chance to start in the absence of the injured Diego Costa and should have had his first international goal after just seven minutes when he was released by David Silva, but the former Real Madrid man pulled his shot wide.

Ukraine were inches away from taking the lead at the other end on 27 minutes when Ruslan Rutan fired wide of the far post.

Seconds later it was Spain who found the net as a brilliant pass from Koke released his former under-21 teammate and Morata's finish flicked up off Evgeny Khacheridi and over the helpless Andrey Pyatov.

The hosts were unlucky not to be further in front at the break when Sergio Ramos sent a header crashing off the bar from Silva's free-kick.

However, it was the visitors who enjoyed the better of the chances in the second period.

Iker Casillas's selection ahead of the in-form David de Gea had been a controversial one, but Spain's all-time record appearance holder repaid the faith shown in him by Vicente del Bosque with a fine save to turn Rotan's in-swinging free-kick behind.

Yet, he nearly undid his good work moments later with a terrible clearance straight to Rotan, but the Dnipro Dnipropetrovsk midfielder lacked precision with his finish and a grateful Casillas parried the ball to safety.

Rotan wasted another great chance 25 minutes from time when he was picked out by Andriy Yarmolenko and again placed his shot too close to Casillas.

Morata was replaced by Pedro Rodriguez 25 minutes from time as Del Bosque looked to regain control with another body in midfield.

However, it was another substitute who had the chance to seal all three points when Santi Cazorla combined brilliantly with Isco only to see his curling effort turned behind by Pyatov.