Former Broncos great Gorden Tallis has questioned whether Sonny Bill Williams is physically capable of returning to the NRL.

Several big-names have been linked to NRL clubs in the wake of the coronavirus pandemic, including SBW, Quade Cooper, Ben Te'o and Israel Folau.

Tallis believes the wear and tear of the cross-code star's body might stop him from being able to perform at the top level.

"I love Sonny Bill Williams - I think heโ€™s one of the greatest forwards Iโ€™ve ever watched on a footy field and heโ€™s done amazing in his career," Tallis said onย Triple Mย on Saturday.

"But Iโ€™ve watched him play a couple of times and I think the cue is in the rack.

"How hard heโ€™s played and what heโ€™s put his body through, I think itโ€™s time for him.

โ€œHeโ€™s getting his superannuation out of the game that heโ€™s played, and I think heโ€™s gone over there to set his family up. His body couldnโ€™t come back and handle the NRL."

Tallis praised SBW for all he has accomplished, but isn't certain he is up to going round again based on his recent performances.

โ€œHeโ€™s played really tough, Sonny Bill has gone into battle so many times and heโ€™s been super professional, ticked every box," he said.

"When Iโ€™ve watched him play (lately) heโ€™s not putting his body in the same position that he used to.

โ€œAnd you know what Iโ€™d be doing exactly the same thing.โ€