Northampton manager Ian Sampson has signed Tottenham goalkeeper Oscar Jansson on a month-long loan deal.The 19-year-old Swede has been brought in as cover for the injured Chris Dunn and is set to start Saturday's clash with Torquay. Sampson said: "He is a Swedish Under-21 international and he had some first-team football experience whilst on loan at Exeter last season. "He is here for a month while Chris Dunn is injured and I'm sure he will do very well for us. "He has been training with Tim Flowers and the rest of the squad this week and we have been very impressed with him. "I don't think Paul Walker would expect to go into the first team at the moment and having only played a few games I think it would be unfair on him to throw him straight in. He's got a lot of potential but he still needs a lot of work before he is ready for first team football."