SPL review:Celtic produced an assured display to dismantle St Mirren 4-0 at Parkhead in the Clydesdale Bank Scottish Premier League, after Kenny Miller's hat-trick gave champions Rangers a 3-0 win over Hibernian.
First-half goals from Joe Ledley and Shaun Maloney were added to after the break by youngster James Forrest, who outlined his immense potential throughout, and Ki Sung Yueng.
Ki completed the rout with an outstanding strike from 25 yards nine minutes from time.
Miller pounced three times in the second half to secure the points for Rangers and add to the goal he netted in last week's opening-day win over Kilmarnock.
Both teams had a man sent off just before half-time when Kyle Lafferty and Kevin McBride were both shown straight red cards, although Walter Smith's men looked sharper after the break despite the reduction in personnel.
New Rangers signing Vladimir Weiss had to settle for a place on the bench but was introduced after the break and impressed, setting up the second goal.
Inverness Caledonian Thistle picked up their first win since returning to Scotland's top flight with a stunning 4-0 rout of Dundee United at Tannadice.
Kevin McCann, the right-back on loan from Hibernian, broke the deadlock, Adam Rooney coolly slotted home the second and Russell Duncan added a spectacular third with an audacious half-volley.
Rooney rounded off the scoring with a penalty after 82 minutes as United's Europa League exertions against AEK Athens on Thursday night appeared to have caught up with them.
In Sunday's other game, Nick Blackman's first goal for Motherwell gave his side their first win of the season, a 1-0 victory at Kilmarnock.
The on-loan Blackburn striker, making his first start, turned home a Chris Humphrey cross from close range nine minutes before the interval. It proved sufficient to settle a game largely lacking in real goalmouth action.
Manuel Pascali was denied a last-minute equaliser by an excellent Darren Randolph save, leaving Kilmarnock still searching for their first points of the campaign.