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When Drogba came to West London in 2004, he made an immediate impact on the club, leading the line as the Blues won the Premier League for the first time. He scored a total of 157 goals in 341 appearances and it was his penalty that clinched the Champions League title in his final season.
However, there were significant downsides to the Ivorian's Chelsea career.
When Chelsea went to Moscow for their first-ever Champions League final in 2008, Drogba was shown a straight red card in the dying minutes of extra time for the ridiculous act of slapping Nemanja Vidic in the face, right in front of the referee.
As the game went to penalties, Chelsea were a man short in their five first-choice kickers and John Terry volunteered to take Drogba's place with disastrous, heart-breaking consequences.
By contrast, Lampard played in that same final having tragically lost his mother to pneumonia just a few short weeks before. After a first half in which Chelsea were completely dominated by Manchester United, it was a trademark strike from Lampard on the stroke of halftime that got the Blues back into the tie.
Despite whatever has been going on off the pitch, Lampard has never been anything but a model professional on it, something that cannot be said for Drogba.