We have live commentary on the BBC Sport website of Scotland's Rugby World Cup match against the United States. I'll sign off now. Look out for the Premiership highlights going online from 18:00 BST. Thanks very much for your company.
- Waghorn scores hat-trick
- Tavernier slots in Rangers' third
- Rangers make it eight wins from eight in Championship
- Morton lose for first time in eight league and cup games
- Ton stay sixth in the table
Morton manager Jim Duffy
"We gave Rangers an invitation to take control of the game with the penalty. Once Rangers got that opening goal they took us to task. Their movement was really good. We were beaten by a far better side today, which is no disgrace. What would have been a disgrace is if we had thrown in the towel and we didn't do that. They are the exceptional team in this division."
Rangers manager Mark Warburton
"The first 25 minutes were really important. We set the tempo. I said from day one Martyn (Waghorn) just needed a regular run. He will get better and better. He takes penalties every day. Today was a good result. I am really pleased with the performance. It's one game at a time. Next it's Falkirk, hopefully it will be a packed Ibrox."
The fans head out of Cappielow at the end of an enjoyable match, though the second half wasn't as engaging as the first 45 minutes. Rangers make it eight wins from eight but Morton can hold their heads high. They have had a really good start to the season since stepping up from League One.
Rangers sub Dean Shiels, on for Gedion Zelalem earlier, hits the post with a right-foot drive.
Big Denny Johnstone is through on the Rangers goal and looks a good bet to score but we hadn't reckoned on Rangers captain Lee Wallace getting back to make a last-ditch tackle.
Four minutes left, folks.
Well, drama over. James Tavernier clears the wall with his free-kick but his shot lands straight at Derek Gaston who makes a simple save.
Thomas O'Ware is booked for hauling down Nathan Oduwa one yard outside the Morton penalty box. This is dangerous for the Ton...
The tireless James Tavernier scampers down the right flank and sends in a cross that is headed by a Morton defender into the path of Martyn Waghorn, who knocks a shot past Derek Gaston from eight yards for his 14th goal of the season.
Nicky Law stretches his legs with an immediate run down the right and crosses for Andy Halliday, who is leaning back when he hits his shot over the Morton crossbar.
Jim Duffy sends on Romario Sabajo for Bobby Barr. Rangers' Nicky Law comes on for fellow midfielder Barrie McKay, who was at Morton on loan last season.
OK, we have 20 minutes to go in Greenock. Can Morton score in the next few minutes to add a bit of drama? They have a corner...but Rangers defender Lee Wallace clears.
Two changes for Morton. Ross Forbes, on a booking, slopes off the field with all the enthusiasm of a man heading to the dentist's. On comes Stefan McCluskey. Alex Samuel also goes off, Peter MacDonald his replacement.
One for the cameras, though the autumn sunshine might play havoc with the exposure. Kenny Miller tip toes on to his left foot and curls a shot at the Morton goal where Derek Gaston arches his back, stretches out a big green arm and makes a good save.
Andy Moles, East Kilbride: "Good stuff from Rangers, keep it up and we can start planning for next year back where we belong."
Rangers make a change: Jason Holt is replaced by Kenny Miller.
Andy Halliday's free-kick from out on the right wing thunders into the midriff of Derek Gaston in the Ton goal.
Morton have two against one in a quick counter-attack but spurn their chance to pull a goal back. Bobby Barr opts not to shoot from 20-odd yards and runs into the Rangers box but his shot is like one of those golf drives that leave you too exhausted to take your second shot after 50 yards. He just didn't connect with it cleanly at all.
Twenty-year-old Morton defender Michael Miller makes a superb challenge to deny Martyn Waghorn just as the Rangers striker was trying to move the ball on to his left foot.
Denny Johnstone, on loan from Birmingham City, dashes into the box from the left touchline and tries to curl a shot in at the far post. Alex Samuel, on loan from Swansea, rushes in and is a whisker away from poking it in for a Morton goal.
That's a bit better from the Ton, as they build patiently and Bobby Barr sends a ball into the box that Danny Wilson clears.
Falkirk manager Peter Houston
"Morton are causing their own problems by giving the ball away cheaply at the start of this second half."
The TV cameras are picking up some lovely pictures of young fans watching the match from the branches of trees just outside the stadium. This is proper football, except it's on at Sunday lunch-time.
Morton get us going once again at the Tail o' the Bank.
bringthemonjpn: "#bbcscotfootball Rangers looking good for all three points in the 1991-1991 Scotland salmon pink jerseys. Cracking third goal."
That was a thoroughly entertaining first half. It would have been interesting to see how things would have panned out had Ross Forbes not pulled down Nathan Oduwa, from which Martyn Waghorn gave Rangers the lead from the penalty spot. Rangers' third goal was a cracker, James Tavernier rounding off a move he had begun outside his won box. Morton have not been mere onlookers, though: Michael Tidser's left-foot volley and Denny Johnstone's immediate follow-up tested Wes Foderingham.
Michael Tidser's volley draws a superb save from Wes Foderingham and the Rangers goalie is alert enough to immediately deny Denny Johnstone. Morton may be three goals down but they are putting up a decent fight. I'd expect the home support to applaud their players off at half-time.
Conor Pepper, at the edge of the Morton box, smacks his clearance off Nathan Oduwa and the ball sails into the path of Martyn Waghorn. Perhaps stunned at the chance to score a hat-trick he cracks his shot straight at Morton goalie Derek Gaston who makes a brave save.
Morton try to hit back as Bobby Barr drives at the Rangers defence but his shot isn't hit cleanly enough to trouble Wes Foderingham. Moments later, Alex Samuel rolls the rather cumbersome-looking Rob Kiernan inside the box and with his unfavoured left foot lashes a shot wide of the Rangers goal. Better from Morton.
What a peach of a goal. In a superb counter-attack Rangers break at pace from the right-back position, through midfield and out to Barrie McKay on the left. He feeds Gedion Zelalem whose weight of pass is perfect for the irrepressible James Tavernier, who smashes home a shot from 12 yards.
Ross Forbes curls a good free-kick from the right wing with his left boot and his effort hits the side netting of Wes Foderingham's Rangers goal.
Rangers really ought to be three goals up. Gedion Zelalem lofts a ball to the back post for Nathan Oduwa, who cushions a beautiful ball across the face of the Ton goal. Barrie McKay only had to side-foot, knee or chest the ball home - but didn't!