Sebastian Cancelliere went over for the opening try after just three minutes

Both teams scored three tries but Northampton's superior goal-kicking was a reflection of the control and field position they enjoyed throughout.

There was a late change among the Glasgow replacements with Nathan McBeth taking the place of new dad Oli Kebble, while Matt Fagerson made his 100th appearance for the club in the back-row.

Warriors went ahead early on as Alex Mitchell's intended pass for George Hendy was picked off by Sebastian Cancelliere.

The Argentina winger ran from inside his own half before dotting down for the try. Tom Jordan couldn't add the extras.

Northampton recovered, however and by half-time had built up a commanding advantage after running in three tries of their own and adding a Fin Smith penalty.

The first try was scored by Courtney Lawes, the England veteran taking a pass from Smith and shrugging off Sean Kennedy's tackle to score.

Northampton maintained the pressure and it was not long before they were over the line again. This time Tommy Freeman was the scorer, rounding off a period of Northampton pressure to score after taking a pass from Smith.

Warriors were then temporarily reduced to 14 men when Scott Cummings was adjudged to have not jumped straight in the line-out before landing on Alex Waller, who went off for a head injury assessment and never returned.

Northampton made the most of the man advantage, George Furbank setting up Freeman who burst around the post for his second score of the game.

Glasgow switched scrum-halves at half-time - Ben Afshar on for Kennedy - and then changed three of the pack not long after to try to regain a foothold in the contest.

It failed to change matters, however, as Smith kicked another brace of penalties to stretch Northampton's advantage.

Warriors finally gave their supporters something to cheer when Ollie Smith ran on to his own chip kick to score before the home side were then awarded a penalty try. But it was too little too late from the Glasgow side.

Glasgow head coach Franco Smith told TNT: "I'm disappointed with the first half. We looked like we were surprised by what Northampton brought.

"We know we've got to start better, and we've been speaking about it. There's hard work ahead for us.

"I must compliment them. They stopped our set piece really well, Mitchell was outstanding - his kicking performance was exceptional.

"We have all our processes in place - we will look at what needs to improve. It's small things, and hopefully we can get a win on the road next week."