Glenn Loovens' first-half strike and a late Niall McGinn drive against Hamilton at Parkhead took nervy Celtic back to within a point of Clydesdale Bank Premier League leaders Rangers after a 2-0 victory.
The Dutchman volleyed in Barry Robson's corner after 14 minutes but the home side did not rest easy until McGinn, on for Scott McDonald on the hour mark, scored a second in injury time.
The win puts pressure on the Ibrox men, who play their game in hand against Hibernian at Easter Road on Sunday.
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