It was a transfer window that most clubs chose to approach with a great deal of caution owing to the financial strain caused by the Covid pandemic. However, there were exceptions to that and Premier League giants Chelsea were ready to break the bank and then some this summer.Chelsea splashed the cash to reinforce Frank Lampard's promising project at Stamford Bridge after the club legend led his side to Champions League qualification in his first season as the manager. The board did not think twice about backing him and roped in some of the finest young players in Europe.Some of them are still finding their feet while a few have been impressive already for the Blues. Nearly two months into the new Premier League season, let's take a look at the five most valuable Chelsea players.(Info. courtesy: Transfermarkt.in)#5 Ben Chilwell (€50 million)Ben ChilwellChelsea had been looking to sign left-back Ben Chilwell from Leicester City for a while and as such, it was no surprise when they finally agreed a deal worth £45 million with the Foxes for the Englishman.Chilwell has hit the ground running at Chelsea and has already turned in a couple of performances that justify his price tag. His transfer market value has risen as a result of this and he is now valued at €50 million.The 23-year-old was mighty impressive against Crystal Palace and scored a goal and assisted another in what was a man-of-the-match performance. His performances so far have been good and Frank Lampard will be asking for more of the same from the former Leicester City left-back.Ben Chilwell so far...5 appearances 1 goals3 assists 3 clean sheets1 MOTMFor such a controversial signing, this man has been phenomenal. Our LB position is covered for years to come. pic.twitter.com/7Iqqpq6POe— LDN (@LDNFootbalI) October 21, 2020#4 Christian Pulisic (€60 million)Christian PulisicChristian Pulisic was Chelsea's standout performer for the latter part of the 2019-20 season since the Covid restart and scored four goals and racked up four assists in that period. He was a menacing presence down Chelsea's left flank and his excellent movement and ability to beat defenders played a big role in Chelsea finishing in the top four.Pulisic has been played out of position this season so far and as a result of this, his productivity has suffered. Frank Lampard is presently trying to figure out a way to accommodate all the attacking wealth that he has at his disposal.The 22-year-old is currently valued at €60 million which is in the ballpark of the amount (€64 million) that Chelsea paid to sign him from Borussia Dortmund.I’m confident that Christian Pulisic will have just as good career at Chelsea as Eden Hazard did, providing he stays fit. Here are there stats after 20 games for Chelsea. pic.twitter.com/KRSQQBUKjf— Frank Khalid (@FrankKhalidUK) October 24, 2020