Celtic retained

              

A glancing header from Caley midfielder Owain Tudur-Jones inched past the Celtic post in the only first-half effort from the visitors.Celtic slipped into cruise-control and added a third when Commons swept down the left wing and slotted a ball across for Hooper to casually flick between his legs and over the line from six yards.Anthony Stokes had the ball in the back of the net shortly after the half-hour mark, but the assistant referee had already flagged him offside.Samaras and Paddy McCourt both made late appearances as Celtic aimed to finish the match with a semblance of style, and the Greece international delivered a rousing finish with a fine solo effort.After a goalless first half, Emilio Izaguirre replaced the injured James Forrest for the restart as a similar pattern to the match continued: a free header for Efe Ambrose from six yards out clearing the Caley Thistle crossbar.Capitalising on a Tudur-Jones blunder, Samaras drifted unchallenged into the Caley Thistle penalty area and crashed a shot in off the underside of the crossbar.The stalemate was finally broken when Hooper found the net with a cool finish, picking up a threaded pass from Commons on the edge of the penalty area and slotting low past Antonio Reguero.