Cristiano Ronaldo was the star performer in the opening set of fixtures but Diego Costa and Kieran Trippier also impressed

Goalkeeper: Guillermo Ochoa, Mexico

Mexico were always going to need some heroics from Guillermo Ochoa to beat reigning champs Germany. And the man for the big occasion stand up to the task again. Ochoa was one of the standout keepers in Brazil four years ago and he has begun the tournament in Russia in penalty fashion too. He kept a clean sheet and stimulated nine saves- more than any other keeper in the first set of games. Rating: 8.35

Right-back: Nacho, Spain

Dani Carvajal's injury has given his clubmate, Nacho, job opportunities at right-back, but he was not guaranteed to start against Portugal. Alvaro Odriozola had been given the nod in the warm-up friendlies before the tournament and the Real Sociedad youngster may well have kept his place had former coach Julen Lopetegui done the same. In the end Fernando Hierro picked Nacho and the Real Madrid man justified the decision with a stunning ten-strike in the best game of the tournament so far. Rating: 7.78

Nacho scored an absolute screamer against Portugal. Photograph: Jonathan Nackstrand/ AFP/ Getty Images

Centre-back: Jose Gimenez, Uruguay

Much was made of Uruguay's enviable strikeforce before the tournament but it was their pairing at the opposite end of the pitching that helped them avoid embarrassment against Egypt. Jose Gimenez scored their late win, emphatically heading home in the dying moments. He also made more interceptions( nine) than any player in the opening round of fixtures. Rating: 9.74

Centre-back: Diego Godin, Uruguay

Diego Godin joins his Atletico Madrid teammate at the heart of the defence. Uruguay were up against modest opposition in Egypt but Godin led by example with a real captain's performance. The experienced centre-back charged out from defence on numerous occasions to force his side on to the front foot. He also made four tackles and four interceptions. Rating: 8.47

Left-back: Jesus Gallardo, Mexico

Despite playing predominantly as a winger for club side Pumas in Liga MX, Jesus Gallardo has built the left-back spot his own at international level over the past year. He was instrumental to Mexico's approach against Germany, constantly stealing the ball and launching rapid counter-attacks. The 23 -year-old induced eight interceptions and completed three dribbles in a memorable victory. Rating: 8.54

Right midfield: Kieran Trippier, England

Were it not for Harry Kane's match-winning brace against Tunisia, Kieran Trippier would have been England's human of the match. He looked at home on the right of Southgate's 3-1-4-2 formation. The Spurs player made more opportunities than any other player in the first situate of games( six) and completed three dribblings as he pinned back the opposition on the right flank. Rating: 8.05

Kieran Trippier generated more opportunities than any other player in the first situated of games. Photograph: Alastair Grant/ AP

Centre midfield: Roman Zobnin, Russia

Russia's midfield destroyer has enjoyed a fine start to the tournament and was impressive both with and without the ball against Saudi Arabia. While somewhat wasteful in possession at times, the Spartak Moscow midfielder registered the assist in a sweeping move for the hosts' second aim and won six tackles and three aerial duels to break up play and trigger quick counters against their hapless foes. Rating: 8.62

Centre midfield: Hector Herrera, Mexico

Hector Herrera was the key player in the Mexico engine room in their 1-0 win over Germany. His workrate and quality on and off the ball were pivotal, ensuring that Toni Kroos was unable to pull the strings for the holders. The Porto midfielder built eight tackles in the match( more than any other player in the opening fixtures) in an excellent showing. Rating: 8.29

Left midfield: Aleksandr Golovin, Russia

While Russia's chief inventor Aleksandr Golovin did much of his best work infield following the substitution of Alan Dzagoev through injury, he started the match on the left. The CSKA midfielder had a direct hand in three goals. He set up Yuri Gazinskiy and Artem Dzyuba's endeavors- the only player with more than one assist so far- before completing the rout against Saudi Arabia with a superb free-kick late on. Rating: 9.80

Forward: Cristiano Ronaldo, Portugal

Cristiano Ronaldo's hat-trick against Spain helped him achieve the highest rating from the opening round of matches- and it devoted him an early leading in the race for the Golden Boot. Ronaldo determined the net with three of his four shoots, been assured that the European champs carried a vital threat on the counter against Spain, who had 67% of possession. Rating: 9.83

The player of the tournament so far( not David de Gea ). Photograph: AFP Contributor #AFP/ Getty Images

Forward: Diego Costa, Spain

Another Spain starter who was not guaranteed a spot in the first XI going into the tournament, Diego Costa was back to his best against Portugal after a difficult season at club level. The Atletico Madrid striker was not on top form this season- he last scored in La Liga in February- but he offered Spain a powerful focal point against Portugal. He scored twice; his hold-up play was superb; and he completed 89% of his pass. Rating: 8.67

* Follow WhoScored on Twitter and Facebook
* Follow Martin Laurence on Twitter

Read more: