Al Kellock gives Glasgow timely boost ahead of 1872 Cup matches with Edinburgh A talismanic leader at the Warriors since 2006, Kellock has negotiated a contract that will keep him on the playing staff until May 2015, the month before his 34th birthday, with options thereafter to either carry on playing or move into an ambassadorial role with the club. "It's a privilege to play for Glasgow Warriors and I'm honoured to be captain of this club," said Kellock. Over the next three or four years I have one goal and that's to help this club win silverware. There is a strong squad and work ethic here and I want to be at the forefront of the push for success. I'm still keen to develop as a player and learn from the coaches at Glasgow. I'm still working hard at my game, still trying to improve and I have more to give to the Warriors. After suffering a serious cut to his arm, Kellock had been a doubt for the first leg of the 1872 Cup, at Scotstoun on Friday night, but he staged a remarkable recovery and will be in his familiar second-row slot for the game as Glasgow begin their defence of the trophy. Edinburgh, however, have suffered a blow as centre Nick De Luca has not overcome the face injury he picked up in training this week and has been left out of the side. Matt Scott will take De Luca's outside-centre berth, with James King slipping into the inside-centre slot Scott usually occupies. Tim Visser, the Edinburgh wing, needs just one more try to equal Tommy Bowe's record of 48 PRO12 touchdowns. Remarkably, Visser has scored in all seven of his league outings this season. However, in the derby context, he has other things on his mind than extending that streak. "I honestly couldn't care less about scoring," said the winger. I would rather just win and take the cup for the first time. That's more important to me right now.