The midfielder has made some very impressive performances for the Ukrainian side this season scoring 8 goals in the process.
However with Manchester City also now interested the result is certain to mean a hike in price for the 20 year old.
Costa’s agent Cesar Bottega explained.
“I have spoken a few times with Manchester City. They have shown interest in the player and are now considering whether to enter into a negotiation or not. I am planning a trip to Europe in a fortnight, but if something were to change I am ready to leave earlier.”
He also added that Italian Serie A side Napoli had also earmarked the midfielder.
“Napoli have followed the player’s performance in the Champions League, then I don’t know if there were concrete contacts, I have not been contacted.”
Costa is currently valued around £8m although this is likely to increase with so many Champions League clubs after his signature this summer.