Chelsea's efforts to sign Douglas Costa from Shakhtar Donetsk in the summer have been deal a cruel blow as Barcelona have entered the race to bring him to Spain.

The Brazilian international has had another very good season in Ukraine and helped his team to the last 16 of the UEFA Champions League before being knocked out by Bayern Munich, yesterday evening.

He has had a very successful spell with Shakhtar, winning the Ukrainian league five seasons in a row, but they are struggling to retain it this year with Dynamo Kiev leading the way presently, and are seven points clear at the top.

He is an attacking midfielder full of creativity and flair and possesses similar traits to what Chelsea already have in Oscar, Willian and Hazard. Costa has two Brazil caps to his name and he is rated in the region of £22 million, and at the age of 24-years-old he is good value.

The key issues that face Chelsea are that Barcelona have identified him as a future successor to Andrés Iniesta, and are willing to match his price. Also, José Mourinho's men already have a host of talent in his position and their fans in particular, may be hoping they look for a striker in the summer to rotate with Diego Costa.

With Didier Drogba set to retire and Loic Remy also a suspected outgoing player in the summer, they are going to be lacking depth in that department. With Cesc Fàbregas, Juan Cuadrado, Ramires and the three player’s aforementioned players, The Blues have several players capable of playing in his position. Also they have Mohamed Salah in their ranks, who is impressing on loan at Fiorentina so maybe a move for Douglas Costa does not fit and may prove to be insufficient business.

Mourinho could be having a clear-out in the summer and looking to bring in new blood as they look to refresh for next season's Champions League campaign after this one ended in defeat to Paris Saint-Germain last night.

Whether Chelsea do go through with the deal is to be questioned in the coming months, but they have certainly been tracking their man for a long time are still tracking his progression.  #Football