ANDREW McCullough lets his great mate and former under-20s teammate Jharal Yow Yeh know how he is going in the long process of recovery from a knee reconstruction.

McCullough tore his anterior cruciate ligament (ACL) last year in an injury that severely dented the Broncos' premiership hopes.

But 'Macca' is known as one of the hardest workers in the Broncos' club, and is leaving no stone unturned in his efforts to be back on the field at the start of the season.

"It is going well," he said.

"It is a bit of over four months now but all is going well and you have to be patient.

"I am just hoping to get to Christmas and then slowly join the boys in training after that."