LUCKLESS Knights five-eighth Jarrod Mullen faces an uncertain future after aggravating his troublesome hamstring at training.
The play-maker broke down during a ball-work drill at training on Thursday.
Scans revealed a small tear near where he had the tendon reattached to the bone in June.
He doesn’t require surgery this time and although hopeful of being fit for the start of the season, Mullen is uncertain of his long-term future.
The 29-year-old was sidelined for three months and played only 14 games last season after tearing his hamstring off the bone playing against Manly on Anzac Day. He suffered a recurrence in July but finished the season.
“I don’t need surgery or that, just a recurrence thing. It is just frustrating,” Mullen said. “I have to grit my teeth and keep going. It is not going to be as strong as it usually it. But if it keeps going it will be pretty hard to get back.”