"The Quins team will be highly motivated to go out this weekend and prove a point. We expect it to be a tough game."
Quins full-back Tom Williams had his ban reduced from 12 to four months for using a blood capsule to fake an injury but Richards was banned for three years for his part in the incident, while physio Brennan was suspended for two years and the club were fined £260,000.
Evans, along with Jillings, tried to convince Williams not to opt for a full appeal in a bid to restrict the information that came out.
They failed and now the 100-page testimony of Richards and Brennan could throw further light on faking injuries with the use blood capsules and other ways of beating the system.
Meanwhile, in an ironic quirk of fate, Quins' clash against Wasps on Saturday will be refereed by Dean Richards — a 40-year-old official from Berkshire. It will be his 22nd Premiership match.