Dai Young felt the controversial decision to penalise Simon McIntyre in a late attacking scrum cost Wasps in a 15-12 defeat at home to Exeter.
Fly-half Ignacio Mieres kicked five penalties to give Exeter a 15-12 win at Adams Park to pile on the misery for relegation-threatened Wasps.
Wasps owner Steve Hayes is close to finalising the sale of the Aviva Premiership club.
Wasps have made two personnel changes to the XV that played Saracens last week for their Premiership clash with Exeter on Saturday (5.30pm).
Aviva Premiership strugglers Wasps have announced that England lock Tom Palmer is to rejoin them on a two-year contract.
Alex Goode scored 17 points with the boot as Saracens won 22-17 at Adams Park to inflict a seventh successive Premiership defeat on Wasps.
Saracens director of rugby Mark McCall put his side's 22-17 Premiership victory at Wasps on Sunday down to a strong team ethic.
Saracens return to Aviva Premiership action on Sunday with a trip to Adams Park to face the struggling Wasps. (kick-off 1.15pm).
USA Eagles utility-back Paul Emerick has signed for London Wasps until the end of the season.
Jim Mallinder enjoyed Northampton's ruthlessness as they booked an LV= Cup semi-final place with a devastating eight-try thrashing of Wasps.
Northampton booked a place in the semi-finals of the LV= Cup with Jamie Elliott scoring twice in their 57-10 romp against London Wasps.
Northampton rugby director Jim Mallinder has labelled Saturday's LV=Cup tie against Wasps at Franklin's Gardens as a "big game".
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