George Hendy scored twice in the space of three second-half minutes to break Exeter's resistance and crown Northampton as Premiership champions, the Saints winning a tight, bruising final 26-17 at the Allianz Stadium.
It was the third domestic title in the club's history and a fitting send-off for departing captain George Furbank, who lifted the trophy on a day when neither side could pull clear until the final quarter. Wing Tommy Freeman crossed early and fly-half Fin Smith added a try of his own, but Exeter refused to fold — Josh Iosefa-Scott powered over seconds before the interval to cut the gap to four points.
The match turned on a pair of yellow cards. With Exeter down to 14 men, Hendy dived over in the right corner after a flowing move across the field, then struck again moments later to put the result beyond doubt. Smith landed all three of his conversions, while flanker Henry Pollock — held up over the Exeter line late on — was named man of the match.
Northampton director of rugby Phil Dowson said the title sealed a campaign in which his side had been the standout team all year.
"We were outstanding throughout the season, it's nice now to be able to put a full stop on it with a big tin cup and say 'we were the best side in the league'," Dowson told BBC Sport.
He felt the contest had the hallmarks of a genuine showpiece. "That was a proper final where it was nip and tuck, there were opportunities, we got held up, they got held up," he said. "We maybe weren't as clinical as we'd have liked to have been, and that can certainly change the pressure."
Dowson credited his bench for closing the game out. "You bring on people like Callum Chick and Fraser Dingwall, who have been there before, and the last 20 minutes we looked very strong," he said.
For Furbank, bowing out as captain, the emotions were tangled. "I said to the boys I don't really know how to feel after the final whistle," he told BBC Sport. "It was a mix of relief, happiness, sadness, all merged into one. It was a different feeling to the last time we won it — I think we're going to have a good few days to celebrate and it'll all sink in."
Exeter director of rugby Rob Baxter was quick to praise the winners but argued his side had pushed Northampton harder than the scoreline suggested.
"The first thing you have to do in a final is congratulate the opposition, because otherwise when you just talk about yourself it just feels like you're critiquing and criticising yourself," Baxter told BBC Sport. "We had them deep into the game, under pressure, scores behind, they've kind of stuck with what they do."
He pointed to two soft tries conceded from kicks as the difference. "You look and go 'well, we forced Northampton to score 12 points with two relatively speculative kicks through' — that's a pretty good performance from us," Baxter said.
With Smith, Pollock and Freeman forming the spine of the side, Northampton will fancy a swift return to Twickenham. Exeter, rebuilt around new signings and coaches after years of dominance, leave empty-handed but with evidence that the gap to the very best is closing.

