SOMERSET captain Lewis Gregory defended his decision not to bowl the final over of Sunday's match at Gloucestershire, as the hosts won by two wickets to knock Somerset out of the Vitality Blast.

Gloucestershire completed the T20 double over their arch-rivals with this thrilling final-ball victory at the Bristol County Ground and, with Northants Steelbacks defeating Birmingham Bears, Somerset were knocked down to fourth in the Central Group standings.

The visitors had posted 161-7 after winning the toss under cloudless skies, Gregory hitting 50 and Babar Azam 42.

Tom Smith was the pick of the Gloucestershire bowlers with 2-25.

In reply, Gloucestershire reached 163-8 off the final ball of the match, Smith hitting a boundary off Ollie Sale.

Ian Cockbain had set up the victory with a brilliant 89 off 57 balls, including nine fours and three sixes.

The result meant a home quarter-final for the hosts, while Somerset were left to reflect on a bitterly disappointing campaign.

They made a brisk start to their innings thanks to Babar and Steve Davies, who took the score to 53 by the end of the fifth over.

Davies was timing the ball sweetly but, having moved to 31 off 19 balls, he pulled a catch to deep mid-wicket off Josh Shaw.

Gloucestershire then applied their customary mid-innings squeeze, taking pace off the ball with left-arm spinners Smith and Graeme van Buuren, well supported by the medium pace of Benny Howell.

Somerset could score only 24 runs between the fifth and 10th overs, the last of which saw Will Smeed (5) caught at mid-off off Howell.

Smith removed Tom Abell (3) to a catch at point in the 11th over and in his next claimed the big wicket of Babar, the Pakistan batsman giving a return catch, having faced 35 balls and hit five fours.

Tom Lammonby (4) then reverse-swept to deep cover off Van Buuren, and Somerset were struggling at 105-5.

Gregory supplied much-needed acceleration, hitting the first six of the innings in the 18th over and following up with another maximum over deep square off David Payne.

The Somerset skipper also hit four fours in his 28-ball half-century, but when he fell to the second ball of the final over, his team could add only two off the last four deliveries.

Sale struck a major blow for the visitors by have Chris Dent caught at deep square off the final ball of the second over of Gloucestershire’s reply.

Miles Hammond feathered a catch to wicketkeeper Davies off Josh Davey to make it 20-2, which became 27-3 when James Bracey mishit a catch to mid-on to give Sale his second wicket.

When Ryan Higgins holed out to deep mid-wicket off 19-year-old left-arm spinner Lewis Goldsworthy, it was 50-4 and much rested on Cockbain.

The first six of the innings was struck by van Buuren off Goldsworthy in the 12th over, but he then fell to a catch at short third-man off Josh Davey.

Cockbain moved to a classy 35-ball half-century, with seven fours, and he and Jack Taylor both hit straight sixes off Goldsworthy as the 15th over went for 19 runs.

Taylor then drove a catch to long-off to give Gregory a wicket, but Cockbain cleared the ropes again off Sale, and Howell hit Gregory for a straight six, to leave 24 required from two overs.

Another Cockbain six off Davey made Gloucestershire favourites, but the batsman then cross-batted a catch to long-on.

The last over, bowled by Sale, began with 13 runs needed.

Two Howell boundaries followed, but there was another twist then he was caught at long-off.

Three runs were still required when Smith faced the last ball, which he smote over wide long-on for four, thus denying Somerset a quarter-final place.

Afterwards Gregory said: "We have had a lot of young players come through this season and part of the plan was to see how they coped with pressure situations.

"Ollie Sale has worked really hard on becoming a death bowler.

"There is nothing to say that had I bowled the last over the outcome would have been any different.

"We are very disappointed to be out of the competition, but we now have to pick ourselves up for a Lord's final in the Bob Willis Trophy [starting on Wednesday at Lord's], which is a really exciting prospect."