One player to prosper in the murky conditions was South Korean Lee Chung-yong, who sent in a teasing early cross from the right.

BBC: Bolton 2-0 Sheff Utd

With just over one minute on the clock, Celtic opened the scoring when Ki Sung-Yong delivered a low free kick back into the St Johnstone penalty area from wide on the right and Stokes fired in from 18 yards.

BBC: Emilio Izaguirre