Pascal Behrenbruch of Germany jumped into second place (5,170 points) with a hurdles time of 14.25 seconds.
Aleksey Sysoyev, second overnight after a strong high jump showing, dropped to seventh with a disastrous 15.24 seconds showing.
But the big Russian scored a massive 884 points in the discus with a best of 50.67m and rebounded into third.
While Sebrle will need some catching, it is turning into a real dogfight for the other medal placings. Hot on Behrenbruch's heels after the hurdles were Russian Aleksandr Pogorelov, Kristjan Rahnu of Estonia, Stefan Drews of Germany and another Russian in the shape of Aleksey Drozdov, all within 41 points.
The overall standings after the discus saw Pogorelov move into second, followed by Sysoyev, Drozdov and Behrenbruch, all within 42 points.
RSS