Linfield frustration over Mark Haughey injury Linfield manager David Jeffrey has admitted injured defender Mark Haughey is no closer to making his debut for the Belfast club. Haughey was a major summer signing for Linfield but he picked up a hamstring injury in pre-season preparations and is struggling to recover. The 22-year-old is to have a scan to help pinpoint the exact problem. "We have to get Mark's injury properly investigated, so that we can see what is going on," said Jeffrey. It has been a major frustration for us. Really it seems like a case of one step forward and four steps back. Linfield face Belfast rivals Glentoran on Saturday with just one point to show from their first three Irish Premiership games of the season. It has been a stuttering start for the Blues who had won six doubles in seven seasons before finishing third last season, behind runaway champions Cliftonville and second-placed Crusaders. Jeffrey made a number of high-profile signings during the close season but two of them - Haughey and former Glens striker Andrew Waterworth - have yet to make their league debuts in a blue shirt because of injury. Linfield hope to have Waterworth back in training inside the next fortnight. As for Saturday's match against Glentoran at Windsor Park, midfielder Philip Lowry, striker Peter Thompson and midfielder Jamie Mulgrew are reported to be injury doubts.