Kyle Rowe is taken high by Owen Farrell. Slick rugby by Glasgow. Nothing more than a penalty.

Lots of niggle in this.

Saracens go off an attack as Lucio Cinti tries to find a gap. The ball goes down.

Saracens now hold Glasgow up.

Lot of pushing and shoving going on. A scrum cap flies off.

Saracens defend the maul well. Stunning play. They are just that annoying team that always stay in a game.

Juan-Martin Gonzalez is off after slapping the ball down.

Mega scrum from Glasgow Warriors. George Horne runs off on penalty advantage to nearly score a wonderful try via a chip and regather.

Another penalty conceded.

Wonderful read from Lucio Cinti, who pinches it ahead of Huw Jones. Jones was in.

Glasgow Warriors fire a penalty into the corner. Big chance.

Never in doubt.

Saracens win a penalty and the tee is on.

The perfect start for Glasgow, who are eyeing a perfect four from four, and home advantage until at least the semi-finals.

Tom English
BBC Scotland chief sports writer at Scotstoun

Still stunned at La Rochelle's exit from the tournament. A proper European Cup powerhouse gone. Shockwaves. This will be a day when everything is settled re the knockouts. Currently, Edinburgh are in line for a trip to, er, Bath in the last 16. If Glasgow win against Saracens then Edinburgh would probably go to Leinster. Nice and easy either way. If Glasgow win this one at Scotstoun they're likely to play the Bulls at home. And what a start by the Warriors. Alex Craig break. Wonderful.

Alex Craig breaks clear. Here come Glasgow.

Really strong carry from Jack Dempsey. Saracens then run it back and the ball goes out.

Glasgow, Sale, Leinster, Harlequins, Bordeaux, Bristol and Northampton all qualified for the last 16 last weekend.

Bath thrashed Edinburgh on Friday to go through as Pool 2 winners.

Six-time winners Toulouse, who demolished an inexperienced Sale side 77-7, Stormers, Castres, Toulon and Edinburgh all reached the knockout stage on Saturday.

Northampton's win over Scarlets just now means the Bulls advance from Pool 4 while Leicester, who lost to Stormers in Cape Town on Saturday, have qualified from Pool 3 thanks to Harlequins' superb victory over La Rochelle.

Can Saracens take the last place in the draw? Or will Glasgow knock them out?

Saracens get in and turn over the maul. Ben Earl loves it.

If Saracens get badly hammered then they risk going out. If Saracens win big then they can top the pool.

Champions Cup for you.