Chelsea%27s%20summer%20signing%20Hakim%20Ziyech%2C%20who%20seemed%20to%20be%20finding%20his%20feet%20at%20the%20new%20club%2C%20has%20suffered%20a%20probable%20hamstring%20injury%20while%20playing%20against%20Leeds%20United%20on%20Saturday.

In%20the%20Premier%20League%20match%2C%20the%20Moroccan%20started%20the%20game%20at%20Stamford%20Bridge%20on%20the%20right-wing%20and%20played%20a%20vital%20role%20in%20Olivier%20Giroud%27s%20equaliser%20after%20Patrick%20Bamford%20opened%20the%20scoring%20for%20Leeds.%26nbsp%3B

He%20played%20a%20weighted%20ball%20down%20the%20right%20flank%20to%20Reece%20James%2C%20who%20then%20whipped%20in%20a%20cross%20for%20the%20French%20forward%20to%20divert%20home%20in%20the%2027th%20minute.

However%2C%20instantly%20the%2027-year-old%20went%20down%20clutching%20his%20leg%20and%20needed%20attention%20from%20the%20Chelsea%20physios.

Ziyech%20was%20unable%20to%20continue%20and%20was%20replaced%20by%20American%20Christian%20Pulisic%2C%20who%20himself%20has%20just%20returned%20from%20a%20hamstring%20problem.

It%20has%20been%20a%20difficult%20start%20to%20the%20life%20in%20London%20for%20Ziyech%20as%20he%20had%20a%20knee%20injury%20in%20the%20pre-season%20friendly%20at%20Brighton%20%26amp%3B%20Hove%20Albion.%26nbsp%3B

However%2C%20he%20had%20just%20started%20pulling%20the%20strings%20in%20the%20Chelsea%20midfield%20as%20he%20amassed%20one%20goal%20and%20three%20assists%20from%20his%20six%20appearances%20for%20the%20Blues.%26nbsp%3B

The%20extent%20of%20his%20injury%20is%20yet%20to%20be%20known%20but%20Chelsea%20boss%20Frank%20Lampard%20will%20be%20hoping%20to%20have%20his%20man%20back%20as%20soon%20as%20possible.%26nbsp%3B

%3Ca%20class%3D%22mention%22%20data-mention%3D%22%23Chelsea%22%20data-user-id%3D%22zne75Yo99tXI%22%20href%3D%22/topic/chelsea%22%3E%23Chelsea%3C/a%3E%20%3Ca%20class%3D%22mention%22%20data-mention%3D%22%23Leeds%22%20data-user-id%3D%22gYVVzvOAsNph%22%20href%3D%22/topic/leeds%22%3E%23Leeds%3C/a%3E%20%3Ca%20class%3D%22mention%22%20data-mention%3D%22%23ChelseavsLeeds%22%20data-user-id%3D%22CRuWC5H1uJE7%22%20href%3D%22/topic/chelseavsleeds%22%3E%23ChelseavsLeeds%3C/a%3E%20%3Ca%20class%3D%22mention%22%20data-mention%3D%22%23EnglishPremierLeague%22%20data-user-id%3D%22rMJKx7nN3VAu%22%20href%3D%22/topic/english-premier-league%22%3E%23EnglishPremierLeague%3C/a%3E%20%3Ca%20class%3D%22mention%22%20data-mention%3D%22%23EPL%22%20data-user-id%3D%22cYfmwp26weeJ%22%20href%3D%22/topic/epl%22%3E%23EPL%3C/a%3E%20%3Ca%20class%3D%22mention%22%20data-mention%3D%22%23Hakim%22%20data-user-id%3D%22mTIOvBICfeXE%22%20href%3D%22/topic/hakim%22%3E%23Hakim%3C/a%3E%20Ziyech%26nbsp%3B