Atletico Madrid secured their place in the last 16 of the Copa del Rey with little fuss as they beat Real Oviedo 2-0 at Estadio Calos Tartiere on Wednesday.

The second-tier hosts arguably had the better opportunities, particularly in the first half, but Atletico were comfortable for much of the game as they avoided an upset.

Marcos Llorente landed the decisive blow in the first half after a period of Oviedo pressure, with Antoine Griezmann – who claimed two assists in the weekend win over Elche – brilliantly setting him up.

Atletico allowed Oviedo to enjoy plenty of possession after the break, but the visitors looked even more comfortable than before and finished the hosts off through substitute Pablo Barrios late on.

Alvaro Morata fired just wide and Llorente forced Tomeu Nadal into a necessary save as Atletico began with intent, but Oviedo soon settled and created chances of their own.

Samuel Obeng was their chief threat but put an inviting Hugo Rama cross into the side-netting from close range and volleyed over 12 yards out either side of Rodrigo Tarin drilling agonisingly past Jan Oblak's left-hand post.

Atletico capitalised in the 24th minute, Llorente getting a little lucky as his scuffed effort beat Nadal after Griezmann's gorgeous first-time pass – a cushioned volley – released him through on goal.

Borja Baston, an Atletico academy product, came on for Oviedo at half-time and saw an early effort fly just off target.

But the game was put beyond doubt seven minutes from time as Barrios – who also scored in the previous round – collected Angel Correa's well-weighted lay-off and finished through Nadal's legs.