James Short grabbed a hat-trick of tries as Exeter registered a 48-32 success over Worcester at Sixways.
Martin Roberts has moved to Exeter on a short-term deal, to help the Chiefs overcome an injury crisis.
Exeter secured a 35-35 draw in a 10-try thriller against Aviva Premiership leaders Wasps despite playing the final 35 minutes with 14 men.
Harlequins have agreed a deal to sign scrum-half Dave Lewis from Exeter Chiefs for next season.
Saracens, Leicester Tigers and Exeter Chiefs all clinched places in the Anglo-Welsh Cup semi-finals on Sunday.
Exeter kept their hopes of progressing to the Anglo-Welsh Cup semi-finals alive with an eight-try thrashing of Wasps.
David Wheeler extended Exeter's unbeaten run as they beat play-off rivals Portsmouth 1-0 at Fratton Park.
Clermont delivered a superb first-half performance to secure a home quarter-final with a 48-26 win over Exeter.
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