Melbourne Storm five-eighth Brett Finch is on the mend on Tuesday after having treatment for a partially collapsed lung.

Scans on Finch's chest and shoulder on Monday revealed he had suffered the partially collapsed lung - a known complication of chest trauma - in the period after Saturday night's win over Newcastle, a club statement said.

He was treated as an outpatient for the delayed onset injury at a Melbourne Hospital and released on Monday afternoon.

The Storm do not play this weekend and he's expected to return in time for the round 20 clash against Cronulla at Olympic Park.

Finch first sustained an injury to his chest against Canberra in round 16 and scans immediately afterwards cleared him of structural damage to both his ribs and underlying lung.

The club said further scans, taken both prior to, and following the Storm's 18-14 win over Newcastle last Saturday night, also showed no structural damage to either his ribs or lung.

The chest trauma sustained against Canberra was believed to have caused the referred pain Finch was feeling in his shoulder area during the Newcastle game.

"We dont envisage any long-term complications for Brett," said Storm general manager of football operations Frank Ponissi.

"He was feeling a lot better last night when we spoke to him and again this morning.

"We have the bye this weekend and we expect Brett to be back training when we reconvene next week."

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