Romelu Lukaku is set to be officially unveiled as Chelsea's third signing this week after he arrived at London on Monday morning to take the medical at Chelsea's training ground at Cobham.

Over the weekend, Chelsea agreed a fee of £20 million with Anderlecht for the signing of the Belgian whiz-kid who is touted to be the long-term successor to Didier Drogba. And Lukaku revealed in his Twitter account that he was set to travel to London to complete the deal.

The remaining formalities of the deal are likely to be concluded on Monday, giving the 18-year-old enough time to meet up with his new team-mates and acclimatize to his new surroundings before the Premiership opener on Saturday against Stoke City, although he isn't expected to feature in that game.

Lukaku made his Anderlecht debut at the age of 16, and has since scored 33 times in 73 appearances. His style of play, physical power and all-round qualities have drawn similarities to Chelsea veteran Didier Drogba who is Lukaku's long-time icon.

Zhirkov didn't have an altogether happy stay at Chelsea.

Elsewhere, Yuri Zhirkov has officially completed his move to Russian side Anzhi Makhachkala.

After being unveiled at his new club, it was delighted Zhirkov who spoke to the club's supporters, expressing his delight at being back home.

I'm very happy to be here in Makhachkala," said Zhirkov according to Reuters. "I hope to make my Anzhi debut in our next game against Spartak Moscow."

It wasn't an altogether happy time for him at Chelsea. He was unable to break into the first team, and injuries blighted his time just as he seemed to hit form.

"In the end it was mostly his (Zhirkov's) decision. It was a great financial offer for him, it is a return home for him." Chelsea manager Andre Villas-Boas told Chelsea's official website.

Finally, Chelsea have also been linked to Borussia Dortmund defender Neven Subotic. A report in claims that Chelsea have cited the player as a long-term replacement for John Terry while the player himself is looking for a move to England.

Liverpool manager Kenny Dalglish has reportedly enquired about the player while the 22-year-old was quoted admitting that he was interested in England.

"My big dream is to play in England," he said. "I don't care where - maybe with Ivanovic at Chelsea or Vidic at Manchester United. It doesn't matter."

Apart from Liverpool, Arsenal, Bayern Munich and Real Madrid are also interested in the player, according to reports.