Atletico Madrid coach Diego Simeone believes Antoine Griezmann is silencing his "many, many" doubters with form for club and country that proves he is still "extraordinary".

Griezmann had become a source of frustration for Barcelona fans during his two-year spell at Camp Nou, and also left many underwhelmed upon his return to Atletico in 2021.

He began look more influential during the first half of this season but a €40million purchase option centred around the number of minutes he played meant he was rarely a starter until Barca dropped their asking price and agreed a permanent sale to Atletico for €20m in October.

Griezmann then enjoyed a tremendous World Cup campaign with France despite featuring in a much deeper position, playing a vital role as Les Bleus made it all the way to the final before dramatically losing on penalties to Argentina.

Since returning to club action, he has tallied three assists in two matches, including a gorgeous first-time cushioned volley pass to set up Marcos Llorente in the 2-0 Copa del Rey defeat of second-tier Real Oviedo on Wednesday.

Simeone had always backed Griezmann, and he believes some of his critics are now being hushed.

"You have to go back and remember seven days before the World Cup, how he played in the first game [in the Copa del Rey] we had. He did it with the same dedication, the same commitment," Simeone told reporters.

"Antoine always wanted to be here. He regained the affection of the fans; [on] the field [he] speaks, and it is a good image for his teammates, wanting them to reach an important level.

"He is an extraordinary player despite the fact that many, many, thought otherwise."

Up next for Atletico on Sunday in LaLiga is the visit of Griezmann's former team, Barca.

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.