Hearts goalkeeper Craig Gordon suffered a horror leg injury as his side came from behind twice to draw 2-2 with Dundee United in an action-packed Christmas Eve showdown at Tannadice.
The 39-year-old was carried off with his leg in a brace midway through the second half after a collision with United attacker Steven Fletcher, and subsequent pictures of the incident suggest Scotland No 1 had done serious damage.
The Jambos - who secured a point through a stoppage-time penalty from Lawrence Shankland - also lost key center-backs Craig Halkett and Stephen Kingsley to injury in a match that saw both sides have penalty awards overturned following VAR reviews.
Hearts boss Robbie Neilson said Gordon has been admitted to the hospital and a full diagnosis will be made in the next 24-48 hours.
He told BBC Scotland: 'He's gone to the hospital and it's not looking great. I'm devastated for him. But he'll get through it. The big man's a warrior.
'We'll just help him through and see where we are in the next couple of days.
Hearts started with the same team that beat Kilmarnock 3-1 in their first game back after the World Cup break.
Three changes to the United side started their last match against Aberdeen six weeks previously as Scott McMann, former Hearts midfielder Arnaud Djoum and Ian Harkes took over from Ross Graham, Craig Sibbald, and Jamie McGrath.
Hearts were forced into an early change when Halkett - who has endured an injury-hit 2022 - fell awkwardly while shepherding the ball back to goalkeeper Gordon and had to go off. He was replaced by Australia defender Kye Rowles.
United made the breakthrough in the 20th minute when Fletcher's half-volley from 20 yards out deflected off Rowles and beat Gordon at his right-hand post after the former Scotland striker had latched on to a ball over the top from Aziz Behich.
Josh Ginnelly almost found a response for Hearts in the 31st minute when he ran on to a lovely pass from Barrie McKay and burst into the United box but he curled his effort agonizingly over the bar.
The visitors lost a second center-back to injury in the 38th minute when Kingsley clashed heads with Djoum while attacking a corner and was forced off, with Toby Sibbick coming on in his place.
But Hearts equalized in the 40th minute when Cammy Devlin won a tackle just outside the United box and prodded the ball through for Smith to slot past Mark Birighitti from 15 yards.
Hearts were awarded a penalty in the sixth minute of first-half stoppage-time when the ball struck Djoum's hand as he slid in to challenge Devlin. However, referee Colin Steven was advised by VAR to review the incident and reversed his decision on the basis that it had struck the United midfielder's supporting arm.
It proved a pivotal moment as United went ahead just two minutes after the restart when Dylan Levitt curled home a lovely finish from the edge of the box after being teed up by Glenn Middleton.
Fletcher looked all set to extend the hosts' lead in the 58th mi