Table-toppers continued their remarkable unbeaten run with a dominant three-one scoreline against reduced Watford.
Frank Lampard's squad started to a perfect start with Brandon Thomas-Asante and Jamie Allen finding the goal within the opening minutes.
The Japanese winger added a 3-0 goal just before half-time, while a Watford defender was sent off before the half.
A Watford player netted a second-half for the losing squad, but it turned out to be nothing more than a consolation goal.
Coventry's goalkeeper Carl Rushworth had previously blocked a golden chance for the winger, which could have changed the contest early on.
Lampard said: “That was a tough game today because they are a good outfit.”
The substitute was introduced from the substitutes to score the lone strike in a narrow victory over the Baggies.
They controlled the match but only found the deadlock in the closing stages thanks to his 5th goal of the campaign.
The away team thought they had scored in injury time, but the effort was ruled out for a infringement in the penalty area.
The home player scored a second-half mistake to give Stoke a narrow win.
The home side have now won just a single fixture since the end of the summer.
Robins commented: “This was one of the vital victories we’ve had this campaign.”
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