Celtic will face East Kilbride, Ross County and Inverness Caledonian Thistle in their next three matches.
Celtic will take on East Kilbride away from home at the Excelsior Stadium in the fifth round of the Scottish Cup on Sunday afternoon.
Ronny Deila’s side will then face Ross County at Celtic Park in the Scottish Premiership before taking on Inverness Caledonian Thistle at home in the league.
Former Celtic striker Hartson believes that the Bhoys will win all of their next three matches.
“Celtic will probably go out against East Kilbride tomorrow and wipe the floor with them,” the former Wales international wrote in The Scottish Sun. “Chances are they will then hammer Ross County and Inverness Caley Thistle at home.”
Celtic have the best squad in Scotland, but their last two results have been hugely disappointing.
The Glasgow giants lost 3-1 to Ross County at Hampden Park in the semi-finals of the Scottish League Cup last weekend.
Then on Wednesday evening, the Hoops went down 2-1 to Aberdeen away from home at the Pittodrie Stadium in the Scottish Premiership.
Celtic are three points clear of second-placed Aberdeen at the top of the Scottish Premiership table at the moment.