Scotland's Al Kellock shows devotion to Glasgow's cause Kellock, Scotland's nominated captain at the World Cup last year, has lost his place in the national side to Jim Hamilton. Given recent results, and his established partnership with Richie Gray, it is far from impossible that a strong performance in Swansea could lead to a recall to the starting XV against Ireland. That, though, is far down his list of priorities. "It's a huge game," said Kellock of the Ospreys fixture. But it's not a huge game for me to get my Scotland jersey back, it's a huge game for Glasgow to get the points to put us in the right place to get into the semi-finals. The biggest motivation this weekend is for Glasgow to get the points down there. There's not a huge number of games left and it's very tight. We have actually lost a bit of ground over the past few weeks if you look at the results that Ulster and Cardif have had. It's important to go down there and do our best to get the win. It's an intimidating place to go. Ospreys are an incredibly physical team. But we have to focus on ourselves. Yes, we've done our analysis and we know what to expect from them, but we need to attack in a way that they find difficult to defend and defend in a way that they find difficult to attack. Glasgow have a poor record on the Ospreys" home soil, their best result there being a 9-9 draw there in 2009. On top of which, the Welsh side have been unbeaten at home in their last eight games, despite being considerably understrength due to international commitments at times. Glasgow are fourth in the PRO12 table, with Ospreys holding second place, five points better off. The Warriors have drawn their last two games - astonishingly, they have drawn four of their 16 league games this season - and they would almost certainly be happy to finish level in Swansea as well. Edinburgh, on the other hand, are having a wretched PRO12 season and are currently kept off the bottom of the table only by Aironi. The capital side's league form is in marked contrast to their heroic efforts in the Heineken Cup, where they have earned a home quarter-final against Toulouse after winning five of their six pool games. Edinburgh will seek to improve their league position as they take on Ulster at Ravenhill, also on Friday evening. Coach Michael Bradley has made four changes to the team which lost to Connacht last weekend, with Sep Visser, Phil Godman and John Houston taking over from Chris Paterson, Gregor Hunter and Jim Thompson in the backline, and Ulises Gamboa taking the place of Jack Gilding in the pack. The Heineken Cup quarter-final match against Toulouse next month is set to be the biggest club game in Scottish rugby history, with more than 20,000 tickets already sold for the April 7 clash with the four-times competition winners at Murrayfield. The previous record of just over 17,000 was set when Edinburgh hosted Ulster in the 2003 Celtic Cup final at the same venue, but with more than a month to go it is not impossible that that figure could even be doubled. The biggest attendance at any UK Heineken Cup quarter-final was the 36,728 who watched Cardiff against Toulouse in the Millennium Stadium in 2009. Edinburgh chief executive Craig Docherty said: "To be in a position to consider challenging a UK record crowd is a credit to the enthusiasm of the Edinburgh Rugby fans and the greater Scottish rugby community. We're working exceptionally hard to make this a massive event, on and off the pitch, and at this rate we could reach another significant milestone for the club and the professional game in Scotland come kick-off.