Newcastle, Exeter, London Irish, Cardiff and Connacht recorded bonus-point wins in the Challenge Cup.
The Exeter Chiefs have secured the future of another key player after Ben White signed a new two-year contract.
Exeter produced a powerful second-half display to win at Connacht and reach the European Challenge Cup quarter-finals.
Exeter have been boosted by the news that three of their forwards have signed new contracts.
Shane Geraghty kicked a last-minute drop goal to give London Irish a 28-26 Aviva Premiership win over Exeter.
Dave Lewis is the latest Exeter player to commit his long-term future to the club by signing a new two-year deal.
David Humphreys lauded Gloucester's character after a thrilling 26-25 victory over Exeter Chiefs.
Gloucester scraped past Exeter by the narrowest of margins as they triumphed 26-25 at Sandy Park on Saturday.
Bath powered to an impressive 31-14 victory over Exeter at The Rec to underline their Aviva Premiership title credentials.
Boss Mike Ford says Bath will not get carried away after another bonus point victory underlined their title credentials.
Second-place Bath welcome West Country rivals Exeter to the Recreation Ground on Saturday.
Exeter have confirmed Tom James will head back to former club Cardiff Blues at the end of the season.
Danny Cipriani created one try and scored another as Sale sealed an 18-11 win over Exeter on Friday evening.
Team news for Friday's Premiership clash between Sale and Exeter at the AJ Bell Stadium.
Exeter Chiefs trio Don Armand, Will Chudley and Matt Jess have all pledged their long-term futures to the club.
Saturday proved to be a Premiership party in the Challenge Cup, with wins for Exeter, London Irish and Gloucester.
Round Four of the European Rugby Challenge Cup continues on Saturday, with six fixtures on the cards.
Rupert Cox shares his highlights from the week's rugby action in his round-up blog...
Exeter cemented top spot in European Rugby Challenge Cup Pool 2 with an impressive 36-10 victory at La Rochelle.
Exeter fly-half Gareth Steenson has agreed a new three-year contract with the Aviva Premiership club.
The concentrated strength of talent in the Irish squad is a credit to the work Joe Schmidt has done for Ireland, says Paul Wallace.