Gareth Ellis will be fully fit for next month's Four Nations Series, according to England coach Steve McNamara.
The Wests Tigers forward, 30, was thought to be a doubt after club coach Tim Sheens said in August he would need groin surgery at the end of the season.
But McNamara said: "He changed his rehabilitation programme midway through the season and is fine now.
"We're delighted he's available. It's a massive boost for the whole country and will add real strength to our pack."
McNamara drafted Ellis into his train-on squad to prepare for the matches which start next month against Australia, New Zealand and Wales.
He added: "Gareth has been in tremendous form in the NRL and has produced some stand-out performances during this campaign.
"He will join up with us next month when the full squad reports to Loughborough ahead of the tournament starting."
The final 24-man squad will be announced on Monday 10 October.
One day earlier, on Tuesday, England named uncapped Hull KR centre Kris Welham in their initial training squad for the Four Nations.