Chelsea close in on Christian Atsu's signature

According to Sky Sports, Chelsea are reportedly in advanced talks with the Primeira Liga champions Porto over the signing of their star winger Christian Atsu. 

The Ghanaian International, who is in the final year of his contract with the Portuguese outfit, has previously attracted interest from the Blues' fellow London rivals Tottenham Hotspur.  

Chelsea have reportedly made a move for the talented 21-year-old, as they look to bolster their squad in the attacking department before the conclusion of the summer transfer window.

The West London side are also expected to complete the capture of Willian from Anzhi Makhachkala subject to approval of a work permit later this week.