Stone's celebration injury mars Northants victory
Josh Cobb and Richard Levi steered Northamptonshire to a third win in three matches in the NatWest T20 Blast
Scorecard
Northants won by 7 wickets (with 21 balls remaining)
Josh Cobb and Richard Levi steered Northamptonshire to a third win in three matches in the NatWest T20 Blast