Melbourne Rebels captain Scott Higginbotham is in doubt for his team's Super Rugby match next weekend against the Brumbies in Canberra due to injury.
The New Zealand and South African teams have the weekend off next week but four of the five Australian teams play each other while the Reds have a bye.
The former Queenland Reds player has been the Rebels star player this season but had to leave the field in his team's 33-20 loss to the Reds.
Higginbotham appeared to injure his shoulder in a tackle on Reds forward Beau Robinson and immediately went to ground. He then got up and walked straight off the field and into the tunnel with what looked like a dislocated shoulder.
The Rebels leading try scorer Higginbotham has revealed that he will go for a scan on the shoulder on Sunday.
"I'll think positive and ... hopefully it's alright," he told ABC News.
"We'll see how we go and hopefully it's not too bad."
The Wallabies first Test match against the British and Irish Lions is in 20 days so any complication would not only put him in doubt for not only next week but also potentially for the Tests.