Costa has netted nine goals in his first seven Premier League games, surpassing the record set by Sergio Aguero and Mickey Quinn for the most goals in his first four matches in the English top flight.
Since arriving from Atletico Madrid for a fee of £32 million, the Brazil-born Spanish international has linked up brilliantly with fellow La Roja teammate, and co-summer arrival, Cesc Fabregas to lead the Blues to the top of the Premier League table, and undefeated in all competitions this season.
With Fabregas registering seven assists in the league, most of them for Costa, and scoring once in the 1-1 Champions League draw with Schalke at Stamford Bridge, the former La Liga duo have wowed audiences since their arrival to England, and are already staking the claim as the best transfer business completed over the summer. Many are suggesting that the pair are the difference between the West Londoners winning the Champions League and the Premier League, and, if they do help lead the Blues to glory, the fee’s paid for their services will pale in comparison to what they have achieved in their first season in England.
Despite rivalling each other in last season’s La Liga title race, with Costa’s Atletico Madrid beating out Fabregas’s Barcelona on the last day of the season to clinch the league crown, the pair have worked closely in training to impress at Stamford Bridge, and it looks as if they have played together for all their respective careers. Speaking to the Standard, Costa explained the reasons for their sudden understanding of each other, having learnt to have an almost psychological link with the midfielder.
The 26-year-old said: “We know each other’s style and I know he has the ability to put the ball wherever he wants.
“It’s the work we do every day that makes things work for us. The same happened with Koke at Atletico. He was very important for me.
“You just have to look at your team-mate or even just hear his voice and you already know where he is. It’s vital you work together in training every day.”