NSW are suddenly sweating on the availability of five-eighth Mitchell Moses after he “felt tightness” in his hamstring, the Blues have confirmed.

In a statement released on Monday afternoon, it was confirmed Moses had suffered a fresh hamstring injury, with scans scheduled for Tuesday to “determine the extent of the injury”.

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In preperation for his potential omission, the Blues will call Matt Burton into the 20-player squad, subject to ARL approval.

“The Westpac NSW Blues, subject to ARLC approval, will call Matt Burton into the 20-player squad as standby for five-eighth Mitchell Moses, who pulled up with hamstring tightness at the end of training at Polytec Stadium in Gosford,” the statement read.

Mitchell Moses has suffered a fresh injury scare.Source: Getty Images

“Moses completed the team session but felt tightness as part of extra activities post the team session and will undergo scans tomorrow to determine the extent of the injury.

‘Subject to ARLC approval, Burton will join camp this evening, and train with the team in their final session tomorrow ahead of Game One of the Ampol State of Origin series at Accor Stadium on Wednesday night (27 May).”

The development puts Moses in doubt for Wednesday’s series opener, with Burton and current squad member Ethan Strange a chance to replace him in the No.6 jersey.

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It would be yet another injury-interrupted series for Moses, who has played just six matches since making his Origin debut five years ago.

“It’s been no secret that I obviously haven’t had the best run of injuries the last few years,” Moses said earlier this week at NSW Blues media day.

“I’ve been feeling really good at the moment, and coming into this Origin series I’ve been feeling really good. So, touch wood I’m injury-free this series and can punch it out. I’m excited for that challenge.”