Hame Sele has been cleared of heart issues after chest pains forced him to leave St George Illawarra's NRL loss to Canterbury in an ambulance.
The Dragons prop remained hospitalised on Sunday morning but took to Instagram to say his early exit from Saturday night's game had been "precautionary".
Sele played 21 minutes of the 28-10 defeat at Jubilee Oval, flagging his chest pains and shortness of breath with a club trainer before leaving the field.
There had been initial fears Sele may have been suffering from an irregular heartbeat, but those concerns were allayed.
The Dragons pointed to a recent illness for Sele's symptoms in a statement released Sunday afternoon.
"Hame Sele remains in hospital being monitored after experiencing chest pains and shortness of breath during last night's match against the Bulldogs," a club statement read.
"Sele was admitted following a flu illness in the past three weeks. He did not experience an irregular heartbeat as was suggested.
"The club will continue to provide Sele with the best possible care and will provide a further update on his recovery in due course."
Sele took to Instagram late on Saturday night to confirm he was on the mend.
"I appreciate everyone reaching out to check in on me," Sele wrote.
"I'm feeling better. Still in hospital waiting for the doctor but it's only precautionary. Much love."
A local junior, Sele returned to the joint-venture club this season after five seasons away playing for Penrith and then South Sydney.
He has averaged 85 run metres across 11 games in a season hampered by injuries.
It remains to be seen whether Sele will return to the field against Gold Coast next Sunday as St George Illawarra continue to push for their first finals berth since 2018.
Saints could be without five-eighth Kyle Flanagan, who has been referred directly to the judiciary after being accused of biting Bulldogs centre Stephen Crichton during Saturday's game.
Centre Moses Suli is under an injury cloud after suffering a suspected medical cruciate ligament injury in the second half against Canterbury.