Partick Thistle rarely troubled Celtic following their 3-0 defeat at Firhill yesterday to record their fourth game without a win.
Gary Mackay-Stevens scored the first after just 38 seconds following a corner kick. When the ball broke to him inside the penalty area he turned it low and hard past Scott Fox.
Stuart Armstrong doubled the score on the half hour mark and Stefan Johansen added a third in the 66th minute.
After the match Thistle manager, Alan Archibald told ptfc.co.uk: “Conceding a goal that early obviously makes things very difficult from the start. What makes it more frustrating for us is that it comes from our kick off. I think from there the lads felt a bit sorry for themselves for the next 25 minutes to be honest.
“We got a reaction out of the boys as the half wore on and we had our best spell at the start of the second, by then though, most of the damage was already done. You can’t gift Celtic goals like we did. They’re a hard enough team to start off with - we don’t need to be giving them easy goals.”
Thistle looked more confident in the second half and Archibald believes this was down to them gaining a bit of belief.
He said: “At the break we just told them to go believe in themselves and make it a game in the second half. We needed to be competitive all over the pitch and I think you saw a bit of that in the second half, but the damage was done by then.”