Foran has been in meetings with the NRL's integrity unit to determine if he's fit to return to rugby league after he left the game earlier this year following a host of off-field, personal issues that saw him released by his Paramatta club.
While that decision lies with them, Doyle also stressed the need to have a healthy Kieran Foran back at his best, both physically and mentally, before the club can even think of signing him on.
"He's still got personal issues he's working through, but he's working with the right people," Doyle said.
"With your mind, you don't just wake up one morning and say, 'Right, I'm fine now,' you take time and you need people around you to help you going in the right direction."
Coupled with that is Foran's shoulder injury which had him sidelined earlier in the 2016 season.
According to Doyle, it's still not 100 per cent, and that may affect the timing of his return.
"Kieran's also recovering from his shoulder injury, so he can't be on the field at the moment doing contact and doing post-sessions with the team, he'll just be training with some of the other players in rehab.
"At the end of the day, if he's ready for round one that'll be perfect. If he's not, and it's round two or three, well that's fine too."