Glasgow 20 Exeter 16: Glasgow Warriors edge past Exeter Chiefs to blow pool wide open Back-row Tom Johnson was added to Stuart Lancaster's England squad at the end of last week and he immediately made an impression by snatching possession off the home side. When Glasgow lock Alastair Kellock was penalised for illegally taking out Chiefs scrum-half Dave Lewis, fly-half Gareth Steenson put the visitors into an early lead with a simple kick. The home side hit back almost immediately through a penalty from Ruaridh Jackson, but it was Exeter who looked the more threatening early on. Steenson nudged Exeter back in front on 12 minutes after another ruck infringement from the home side, but Glasgow were gifted a chance to level the game two minutes later. With the home side going nowhere, Chris Whitehead pulled back scrum-half Matawalu and Jackson was left with a straightforward kick to even the match for a second time. Worsening conditions meant neither side was taking risks and when Steenson kicked his third penalty on 20 minutes it looked like turning into a battle of the boots. But the Irishman was in the sin bin two minutes later, with Glasgow five metres from the Exeter line, the desperate fly-half after entered a ruck from the side. Baxter immediately sent on Henry Slade with no recognised kicker on the pitch, but it was Glasgow who contrived to make a mess of their one-man advantage. First, they were penalised for early engagement at the scrum, which allowed Exeter to clear their lines before missing an important kick to touch from halfway. Their final chance to take advantage of Steenson's absence came when Josh Strauss stole a scrum against the head, but his pass was fumbled when a try looked certain. Glasgow were the ones asking the questions straight after the half-time break and Exeter were quickly penalised for collapsing a scrum. But Jackson's kick at goal was poor and the home side once again let the visitors off the hook. To their credit, Glasgow continued to put the Chiefs under pressure and the game's first try came on 48 minutes. A passage of three phases opened up gaps in the Exeter defence and former Newcastle Falcons lock Tim Swinson was able to go in under the posts and leave Jackson with a simple conversion. As Johnson's influence on the game faded it was the likes of Kellock who were dictating the game for Glasgow. The experienced Scottish international was a commanding presence as the game descended into a pretty poor spectacle with both sides struggling to put phases together. When Glasgow did finally make a breakthrough Tommy Seymour crossed in the corner for a try, but it was ruled out by the video referee for a forward pass in the build-up. Seymour went through again on 70 minutes and Glasgow were not to be denied this time. He fed flanker Tyrone Holmes to get his first try in the competition this season. Jackson added a difficult conversion and it proved to be vital as Exeter number eight Dave Ewers scored with virtually their first venture into the Glasgow 22 in the second half. Henry Slade's conversion set up a grandstand finish, but Glasgow held on for an important win.