Drogba (L) may leave Chelsea while Cahill (R) may join the London club. Picture - Reuters.

Chelsea arrested a three-game winless-streak which was threatening to subsume their season with a 1-0 victory at Blackburn over the weekend, albeit with an unconvincing performance. Having shipped five goals at home against Arsenal, questions have been raised of the Blues' defence, which was once synonymous with a crackles wall.

Unsurprisingly, rumours have it that the London club are preparing an £8 million bid Bolton centre-back Gary Cahill.

According to the Daily Mail, Chelsea manager Andre Villas-Boas has pinpointed Cahill as the man to partner captain John Terry at the heart of the Blues defence and although he is out of contract at the end of the season, the Londoners are willing to buy the highly-demanded player in the January transfer window.

The 25-year-old is also wanted by Arsenal and Tottenham Hotspur, but neither of them could be willing to enter a bidding-war with Chelsea and pay £8m for a player whose contract expires within months.

However, reports also claim that Villas-Boas has cited Belgian winger Kevin de Bruyne as the top priority signing during January.

The 20-year-old Genk midfielder impressed against Chelsea, when the two sides met in the Champions League, and has been long touted by the London club. Florent Malouda is expected to move on in the summer, and with Chelsea looking to influx youth into an ageing squad, De Bruyne looks near-perfect for the Blues.

Reports suggest a bid around the region of £15 million in January could make him a Chelsea player, although he will be ineligible to play in the Champions League this season as he has already played in the competition for Genk.

Finally, TalkSport has reported that Chelsea star Didier Drogba could make a move to AC Milan in January as the Italian giants are considering luring the out-of-place Ivoirian to San Siro.

Milan have a three-man wish-list, and the 33-year-old is one of them. The Ivorian is currently in contracts talks with Chelsea, although striking a deal could be difficult due to the club's policy on players above 30. While Drogba wants a two-year deal, the club is offering only a year's deal.

Milan could capitalize on the uncertainty by making a move for the Chelsea star, especially as he'll find opportunities hard to come by against Fernando Torres and long-term replacement Romelu Lukaku.