Exeter into final after Tom O’Flaherty’s solo try lights up win over Northampton

• Exeter 42-12 Northampton• Clinical Chiefs set up Twickenham date with SaracensNorthampton saw so little of the ball in the opening 20 minutes that their 14-point deficit seemed a minor triumph, yet they would have gone into the break ahead had Cobus Reinach, the scrum-half who played a central role in the club’s revival in the second half of the season, not dropped a try-scoring pass in the last act of the first half. Moments, like passes, have to be seized on the big occasion and the Saints, like Gloucester a few hours before them, made an appropriate exit.Northampton had squeezed into the …