Somerset remain on course to defend their title in cricket’s T20 Blast with a 2-wicket victory over Yorkshire to progress to Finals’ Day.

Craig Overton’s 79 saw the holders home with a ball to spare.

They’ll face Northamptonshire, who eased past Gloucestershire by 8 wickets, in the last four at Edgbaston on Saturday.

Nottinghamshire edged out Surrey by 7 runs, while Hampshire beat Essex by 75 runs.