Chelsea players from Spain, Nigeria and Brazil feature.
Cesar Azpilicueta reached the top speed of any Chelsea player at the World Cup.
Statistics compiled by FIFA, clocking a player's top sprint speed, record the Spanish defender as quicker than any of his teammates.
Azpilicueta recorded 31.6 kilometres per hour, way short of Costa Rica's Junior Diaz' top speed of 33.8, but enough to be Chelsea's quickest.
Here are the club's top five:
1) Cesar Azpilicueta 31.6 k/ph
2) Victor Moses 31.4 k/ph
3=) Willian 31.1 k/ph
3=) Ramires 31.1 k/ph
5) Kenneth Omeruo 30.7 k/ph
Featured are two Nigerians whose futures, long-term and short-term at the club remain in doubt.
Victor Moses was very disappointing on loan at Liverpool last season, and it would be a surprise if he remained at Chelsea this coming season, expected to be sold. Omeruo on the other hand has been linked with a loan move, most recently with QPR.
As for Azpilicueta, his pace underlines another strong facet of his game, to show why he will not be giving up his left-back spot to the incoming Filipe Luis without a fight.