Chelsea are reportedly close to signing Atletico Madrid trio Diego Costa, Filipe Luis and Tiago for a total fee of £51 million.
While the Blues are on the verge of completing a £32m deal for Costa, the West London club are also willing to meet Luis's £19m buyout clause, according to ESPN.
Finally Chelsea boss Jose Mourinho is looking to snap up the 33-year-old Tiago, who played for the Blues in the 2004/05 season, on a free transfer once his contract expires next month.
Now that Samuel Eto'o has been released and Fernando Torres looks like he will be leaving the Blues this summer, Costa's signing is certainly a necessity as Mourinho looks to launch a fresh attack on the Premier League title next season.
Despite being linked to other strikers including Bayern Munich's Mario Mandzukic, Costa has always been the Blues number one target due to his superb form that saw his score 27 goals in 35 La Liga appearances for Atletico Madrid last season.
Luis, on the other hand, is being signed as a replacement for the departing left-back Ashley Cole, who confirmed he would be ending his association with Chelsea after eight years.
Although Cesar Azpilicueta has proved to be successful in the left-back position this season, Mourinho reportedly wants the Spaniard to concentrate on his natural right-back position. This is why the Portuguese is keen on signing Luis.
Despite recently stating he was happy at the Vicente Calderón, the 28-year-old may be tempted to move to Stamford Bridge as the Blues are ready to double his current wages from £40,000 to £80,000 a week.
Meanwhile, Chelsea veteran Frank Lampard is reportedly considering his future as he is yet to agree to a new contract with the club.
The 35-year-old midfielder along with Cole was present in Chelsea's list of released players submitted to the Premier League.
Despite his age, Lampard, who is currently busy preparing for the 2014 World Cup with England, says he wants to continue playing for a couple more seasons before hanging up his boots.
However, the former West Ham player, who is currently Chelsea's all-time highest goalscorer, admits that he might not be at Stamford Bridge next season.
"I don't know if I'll be at Chelsea next season. I'd like to carry on for two or three more years but it would be good to end on a high. So, if that means it all ends tomorrow, I wouldn't have any regrets," Lampard told the Sun.
"You know your shelf-life, so I started to mentally prepare when I hit 30. I've been doing this for a long time, so there's a part of me that's looking forward to the future."
Lampard, who spent 13 glorious seasons at Chelsea, winning three Premier League titles, four FA Cups, two League Cup, a Europa League title and the Champions League, has been linked with his uncle Harry Redknapp's side Queens Park Rangers even though he may also be considering a move to the MLS.