VIDEO - Highlights: Jan-Lennard Struff shocks Jo-Wilfried Tsonga - ATP St. Petersburg - Eurosport.co.uk

VIDEO - Highlights: Jan-Lennard Struff shocks Jo-Wilfried Tsonga - ATP St. Petersburg  Eurosport.co.ukJan-Lennard Struff shocked second seed Jo-Wilfried Tsonga 3-6, 6-3, 6-2 to reach the semi-finals of the St. Petersburg Open on Friday.