But Bollinger got enough reverse swing to force Sammy to edge to slip, and with five balls left in the day Sulieman Benn top-edged a pull to mid-on to give Johnson his fourth wicket of the day and seventh of the match.
Accies were throwing bodies into the breach to block a torrent of Celtic attacks but Stokes managed to force a drive from the edge of the box which Cerny collected to his left.