from PA Sport

Aberdeen could be without midfielder Stephen Hughes for a month after he suffered a hamstring injury in their goalless draw with St Johnstone.

The former Motherwell man limped off just before the break and joins team-mates Isaac Osbourne, Peter Pawlett and Chris Clark, who have all been sidelined with similar injuries.

Dons manager Craig Brown said it would be a huge blow to be without the player as the battle to reach the top six gathers pace.

He said: "It's unaccountable why we are getting all these hamstring injuries. The only theory I have is that we are forced up here to train on different surfaces.

"We have five different training surfaces, including the beach and indoors, and the legs have to adjust every time you train on a different surface.

"The surface was a bit greasy after the snow that had fallen and Stephen stretched when he went to take a shot and pulled his hamstring. He has been very good for us and never gives the ball away so hopefully we can get him fit again.''

The Dons have now gone 10 matches unbeaten in the Clydesdale Bank Premier League, although six of those matches have been draws.

Brown admitted his team will have to pick up more wins if they are to have a serious chance of making the top six.

He added: "We have had too many draws to make an impact on the league. You will be satisfactory and safe there but you won't make an impact unless you start getting three points.

"We were aware of that and we took a chance by putting on Darren Mackie, Mohamed Chalali and Daniel Uchechi, which were all positive substitutions in an attempt to get that elusive goal. On another day we might have got it but St Johnstone defended well.''

St Johnstone manager Steve Lomas was pleased to leave Pittodrie with a point after losing to Dundee United 5-1 last weekend and getting knocked out of the William Hill Scottish Cup to Hearts midweek.

The Perth side had looked to be heading into the quarter-finals of the Scottish Cup before they conceded a last-minute penalty which was converted by Jamie Hamill before Marius Zaliukas scored the winner for Hearts in extra-time.

Lomas said: "I think it is a good result when you consider the week we have had, which has been a mental rollercoaster.

"We had a disappointing result to Dundee United and then bounced back against Hearts, only to have it controversially taken away from us with 10 seconds to go.

"It's all credit to the lads to then come to Pittodrie against an Aberdeen team who are on a decent run and get a result.

"It was going to be tough for the lads to pick themselves up but they did that very well.

"It wasn't a classic by any stretch of the imagination. We said before the game if we could get a clean sheet we would win the game and I felt but for a little bit of composure in the final third we would have done that."