Stephen Robinson has revealed St Mirren face an anxious wait over the thigh injury sustained by Mark O’Hara.
The Saints skipper missed out as the club recorded their second victory of the new cinch Premiership campaign by defeating Dundee 2-1 and he will undergo a scan on Monday morning to determine the extent of the injury.
“It was a huge blow and it came right at the last minute,” Robinson said.
“We’re getting a scan on Monday morning, we think it’s short term and by that I mean three to four weeks.
“He’s a big blow for us, hopefully we can get him back in the next few weeks but we’ll know more after the scan.”
Robinson heaped praise on Zach Hemming, who playerd a key role in clinching victory for the Buddies.
The 23-year-old made a vital penalty save in the first half and produced an excellent stop to deny Luke McCowan an equaliser late on at the SMISA Stadium.
“He was outstanding, as he has been since he came into the club,” he added.
“We knew we had a good goalkeeper with Zach, we’d seen him before. Jamie Langfield has done wonders with him like he does with every goalkeeper that comes into the club, so credit to Jamie.
“We were very confident that Zach was a goalkeeper we wanted and he’s been very good since coming in the door – all the games he’s played he’s been excellent.”
Dundee boss Tony Docherty defended Robinson after the striker missed a first-half penalty.
The newly promoted side were well below par in the first half, and they would pass up a number of chances after the restart to claim a share of the spoils in Paisley.
“Zach is our penalty taker and he scored one against Dumbarton – I had every confidence in him scoring,” he said.
“People miss penalties, it’s not missing the penalty, we’ve had instances in previous games where it has come back to bite us when you don’t take your opportunities.”
The Dens Park side were much improved in the second half, with the introduction of Scott Tiffoney providing a much-needed boost.
Docherty praised the summer signing for his attitude after he was left on the bench for the season opener against Motherwell.
“He gave us a real spark and we got the goal from it,” Docherty added.
“I felt we had opportunities to go on and win it – that’s the disappointing thing for me.
“He’s trained all week and given exactly the reaction I want from someone that’s been left out – he’s trained brilliantly.
“I always intended on getting him on at some stage and he didn’t disappoint – I was really pleased at his performance and his confidence.”