Last Updated: 21/07/13 5:21pm
Thanks for following our live commentary on today's game. Highlights for me were De Bruyne's superb goal, the first-half play of young Bertrand Traore and another lively display from Wallace at right-back in the second half. For a full report, click here.
Superb goalline clearance from Ashley Cole! That should have been a second for Malaysia XI. The England left-back threw out a leg to block the shot.
Shas with the goal for the hosts - heading home from close range in stoppage time after free-kick from wide left hit Cech's legs and came out.
Best part of that fourth goal was McEachran's through ball. Moses stumbled as he took control, but still managed to get right-foot shot in on left side of the area, and poor goalkeeping from Farizal again means ball found the net.
Disappointing ball from Moses on the left-hand side. Then Wallace puts in an excellent cross from the right, but Piazon can't reach it.
Farizal saves at his near post from Ba, who did well to get a shot in coming in from the left-hand side.
Another Cech scare! That one nearly ended up as an own goal. Goes out for a corner. All to do with backpasses.
Good news on Kevin De Bruyne - we're told he's pitchside for the second half and is apparently walking unaided. Relief for Blues fans.
An embarrassing dive from Kunanlan, who tried to con the referee into thinking Wallace had tripped him.
The game's getting bogged down in midfield somewhat. Demba Ba not seeing as much of the ball as Lukaku was in the first half.
Hazard heads towards goal, but the ball bounces just wide. Moses dinked in the initial cross from the right. Hazard should really have got it on target.
Schurrle whips in a cross-shot from the touchline on the right, the ball bending away from the face of goal.
More weak goalkeeping from Farizal, who can't hold onto Demba Ba's strike on goal from 25 yards out in the left channel.
Schurrle seizes onto a Hazard lay-off but shoots from too far out and the ball bounces into Farizal's grasp.
Malaysia's number 12 Shaari crunches into the back of Hazard in midfield but fortunately the Belgian is OK to continue.
Fantastic footwork from Moses as he drives into the right side of the box, but he eventually pushes the ball too far. Hazard and Schurrle were in attendance too.
A reminder of Chelsea's second-half line-up: Cech; Wallace, Kalas, Cahill, Cole; Ramires, van Ginkel; Moses, Hazard, Schurrle; Ba.
Here come the players for the second half. Malaysia XI out first. About 45,000 here to watch this game by the way.
It's almost 10.40pm local time in Kuala Lumpur, where the humidity is 82% (compared to 50% in London).
Talk is that De Bruyne may well have knee ligament damage. That would be a huge blow for the 22-year-old Belgium international, who has worked so hard in pre-season as he looked to impress Jose Mourinho.
Bertrand Traore is technically still on trial at Chelsea, having been connected to the club since 2010, but he must be close to winning a deal by now. The 17-year-old midfielder has already won five caps for Burkina Faso.
Van Ginkel and Hazard were scheduled to be the only players staying on for the second half, but that may change following De Bruyne's injury - he was replaced by Feruz.
Half-time: Malaysia XI 0 Chelsea 3. Kevin De Bruyne's belter (29) added to Bertrand Traore's neatly-taken opener - but the Belgian then had to be stretchered off. Romelu Lukaku made it 3-0 just before the break.
The Malaysia XI loses Lukaku, who was just about onside when Traore played the ball through, and he finishes with aplomb.
First half winding down. It's been a good performance by the Blues - at both ends of the pitch - but tainted by the injury to goalscorer De Bruyne.
Schwarzer has to make his first save of note, diving to his right to turn Zafuan's bouncing drive from long-range around the post.
After Lukaku is crowded out, the ball comes down the other end and Ivanovic eventually feeds it back to Schwarzer with a cushioned chest pass.
Yahyah strikes a set-piece from 30 yards after Chalobah gave away a free-kick but it loops up and down over the wall and is easily claimed by Schwarzer.
Hazard and Feruz are lurking with intent at the near post as Lukaku gets a low cross in, but the Malaysia XI survive the attack.
Hopefully De Bruyne is not too seriously injured - he was having a superb pre-season - but he did have to go off on a stretcher, so it doesn't look good. For the goal, he got between two defenders at the top of the box and lashed home his shot into the roof of the net.
We were told we wouldn't see Islam Feruz but he's been chosen to replace Kevin De Bruyne for Chelsea.
Bad news - De Bruyne has scored an excellent goal, thundering home a fierce shot from Lukaku's knock down, but he's injured himself in the process.
Chelsea are on the back foot now - so much for that dominant start. But Jose Mourinho will probably appreciate some work for his defenders after they had little to do in midweek. Drinks break.
Amri Yahyah is looking like one of the most dangerous players for the hosts. His cross to the far post is headed down but Schwarzer is able to gather the ball.
Terry and Ivanovic have to bundle the ball out for a corner as Malaysia XI attack, and then the hosts almost score from the resulting set piece. A block from Chalobah saves the day and the ball is deflected wide.
Hazard comes infield and plays a one-two with Traore, but it doesn't quite come off and Malaysia XI are able to ease the pressure briefly.
Schwarzer's kindly been allowed to have a few touches of the ball by Bertrand, but the new-boy (if you can say that of a 40-year-old) hasn't had a save of note to make yet.
It's been a dominant start from Chelsea, despite the humidity. It took them a while to get going in Bangkok in midweek, and they faded in the second half, but they look like they mean business here.
Hazard and Bertrand link up on the left, the latter puts in a dangerous low cross and although Lukaku can't connect, the keeper has to parry again.
Lukaku's proving very difficult to handle for the Malaysia XI defence already, and his lay-offs are quickly picked up by either De Bruyne or Hazard.
A ricochet comes through to Traore just outside the area and he took a first-time shot but it wasn't hit hard enough to really trouble the keeper.
Chalobah gives away a free-kick about 35 yards out. A chance for Malaysia XI to threaten, but the ball is comfortably claimed by Schwarzer.
It's a low cross from De Bruyne from the right which was travelling towards Lukaku and Hazard but it's Traore who steals in and finishes with a neat left-foot finish through the defender's legs.
Most of Chelsea's early play coming down the left flank. Ryan Bertrand, the subject of transfer speculation in recent days, is trying to link up with Hazard.
This is the Malaysia XI team, by the way: Farizal (GK), Mahalli Jasuli, Azizi Mat Rose, Asraruddin Putra, Aidil Zafuan (C), Norshahrul Idlan, Shakir Shaari, K Gurusamy, S Kunanlan, Amri Yahyah, Nik Shahrul Azim.
The teams are out on the pitch. Chelsea are wearing their white away strip today, while the Malaysia XI are in amber and black stripes.
The opposition today is made up of some of the best players from the Malaysian Premier League, including several Malaysia internationals. Chelsea have played at the Shah Alam stadium before - in July 2008, they won 2-0 here with goals from Nicolas Anelka and Ashley Cole. They also won 4-1 here in 2003 in the first game of the Roman Abramovich reign.
Romelu Lukaku scored the only goal of the game from the penalty spot on Wednesday in Thailand. Kevin De Bruyne impressed hugely in that game so it will be interesting to see those two linking up again.
More on Frank Lampard's absence - he's not being risked by Jose Mourinho because he felt a "pinch on his Achilles". Josh McEachran and Islam Feruz have also picked up knocks and we're hearing they won't be involved either.
This will be Chelsea's team for the start of the second half: Cech; Wallace, Kalas, Cahill, Cole; Ramires, van Ginkel; Moses, Hazard, Schurrle; Ba.
My name's Jon Holmes - get involved in today's live commentary by emailing me at firstname.lastname@example.org or tweet me at @jonboy79.
Chelsea report that all remaining members of the squad are on the substitutes bench, apart from Frank Lampard and Jamal Blackman.
So goalkeeper Mark Schwarzer makes his first Chelsea appearance since joining the club on a free transfer from Fulham. Also starting is Burkina Faso teenager Bertrand Traore, who made an impression as a substitute in the 1-0 win over Singha All-Stars in Bangkok in midweek.
Welcome to our live coverage of Chelsea's second pre-season tour friendly - today they face a Malaysia XI at the 80,000-capacity Shah Alam stadium in Selangor. Kick-off is at 2.45pm BST.
Chelsea starting line-up v Malaysia XI (4-2-3-1): Schwarzer; Ivanovic, Chalobah, Terry (c), Bertrand; Essien, van Ginkel; Traore, De Bruyne, Hazard; Lukaku.