Phil Brown is keeping his fingers crossed that Anthony Gardner has not suffered a serious injury after X-rays confirmed the Hull City defender had not broken his leg.
Gardner was stretchered off in the final 10 minutes of the Tigers' 3-0 defeat at West Ham United on Saturday and Brown initially feared the centre-half had suffered a leg fracture.
X-rays on Sunday showed that was not the case, but the former Tottenham man is now awaiting a scan to determine if there is any ankle ligament damage.
If the tests show there is damage to the ligaments then Gardner may still miss a large chunk of Hull's battle to stay in the Premier League.
However, Brown is trying to remain upbeat regarding Gardner's fitness, with the one-time England cap due to have further scans on Monday.
"The X-ray is clear so that is some kind of positive," Brown told the Hull Daily Mail.
"But we will not know the extent of the injury until the swelling has gone down and we can have a scan.
"There was a lot of inflammation and until that has cleared up, we will have to keep our fingers crossed."