London - Exeter stormed back to the top of the English Premiership with a 34-24 victory over title rivals Newcastle at Sandy Park on Saturday.
Exeter bounced back from last week's defeat at Leicester as they overcame the loss of Jack Nowell with a facial injury.
They moved back above Newcastle and extended their unbeaten home run to 11 games.
Nic White, Lachie Turner and Sam Simmonds scored Exeter's tries and there was also a penalty try award, with Gareth Steenson converting all three and adding two penalties.
Will Welch, Alex Tait, Vereniki Goneva and Juan Pablo Socino scored tries for Newcastle, with Toby Flood adding two conversions.
Second-placed Northampton's four-match unbeaten run in the Premiership came to an end as they lost 29-24 against Gloucester at Kingsholm.
The lead changed hands repeatedly as the home side took a bonus-point victory through tries from centre Henry Trinder, with two, full-back Jason Woodward, centre Billy Twelvetrees and scrum-half Willi Heinz.
Owen Williams converted two of them, while Saints scored touchdowns via flanker Jamie Gibson and replacement hooker Mike Haywood.
Harry Mallinder added 12 points with a try, penalty and two conversions, while replacement centre Stephen Myler added another conversion.
Leicester recorded their fourth straight Premiership victory with a 28-27 success over London Irish at the Madejski Stadium.
It is the first time since March 2015 that Leicester have won four on the bounce as Nick Malouf and Will Evans scored tries either side of half-time.
Jonny May also continued his impressive try-scoring run, but tries from Blair Cowan, David Paice and Alex Lewington gave Irish a deserved losing bonus point.
Bath survived the home debut dismissal of Freddie Burns to defeat Worcester 29-13.
Burns was sent off with 17 minutes left following his tip tackle on Warriors winger Josh Adams.
Dean Hammond's try had given Worcester an 8-7 first-half lead, but Bath hit back as Alec Brew bagged two tries and Ben Tapuai also crossed.
Tapuai was stretchered off but despite that blow and Burns' premature exit, Bath held on for their fourth win of the season.