In the last decade or so, Chelsea have spent quite a lot of money to challenge for the Premier League and European honours. Russian billionaire Roman Abramovich's initial motive was to rope in some of the best players and challenge for the domestic honours. But in Jose Mourinho, he had a manager who wanted to go toe to toe with the European heavyweights.
Though Chelsea failed to win the Champions League under the Portuguese, they finally ended the wait for their maiden UEFA Champions League title in 2012 when they beat Bayern Munich at the Allianz Arena under Roberto Di Matteo. The squad had the likes of Fernando Torres, David Luiz and Didier Drogba who were signed for big money in the previous years.
Of late, the tide has turned in the Manchester clubs' favour, but Chelsea still have the capability to sign some of the top players like they showed last summer. You can't really get the likes of Jose Mourinho, Carlo Ancelotti and Antonio Conte to manage your club without giving them the backing in the transfer market, can you?
Chelsea - Recent Transfers
Last summer was a pretty strange one for the Blues. Despite winning the Premier League and nearly the FA Cup as well, Chelsea saw some of the big contributors leave for direct rivals. That's a bit weird considering it's them who tend to sign the bigger players.
Back in 2014, Chelsea signed the likes of Diego Costa, Cesc Fabregas and Filipe Luis for big money. The signings played a big role in their run to the title and what is intriguing is the club signed the players from clubs who had won silverware the previous season. While the likes of Bakayoko and Morata too joined them from title-winning sides, their impact hasn't been the same.
The most prominent signing this past summer was Alvaro Morata. He replaced Fernando Torres as the club record signing. Tiemoue Bakayoko and Danny Drinkwater were signed as replacements for Nemanja Matic and Nathaniel Chalobah who left for Manchester United and Watford respectively.
Costa was sold to Atletico Madrid as he had a spat with manager Conte and the relationship was beyond repair. That, combined with Matic's departure, is perhaps the reason why the club has struggled to keep up with runaway leaders Manchester City this season.
Antonio Rudiger was signed as a replacement for the departed John Terry while Davide Zappacosta was signed to add more depth to the right-back slot.
In the January transfer window, Chelsea loaned out Michy Batshuayi to Borussia Dortmund and signed Olivier Giroud to add more potency to their attack. Ross Barkley and Emerson Palmieri were the other notable signings.