Essendon legend Tim Watson has expressed 'real concerns' over the long-term fitness of star forward Joe Daniher, who is still battling chronic groin problems in the last year of his contract with the Bombers.

The 26-year old has not played a senior game in over 12 months and remained at Essendon after an unsuccessful trade request to Sydney last offseason.

Essendon coach John Worsfold spoke at a press conference Tuesday, stating his return remains "a fair way off" and was unable to give a definitive answer if Daniher will play at all in 2020.

Speaking onย SENย before Worsfold's press conference, Essendon great Tim Watson expressed his concerns over Daniher's future.

โ€œI wouldnโ€™t say grave concerns, Iโ€™ve got real concerns though having watched them return to training yesterday and then understand that he is still at what I was told last night around 80 per cent,โ€ he said on SEN.

โ€œNow I think thatโ€™s probably being a bit generous."

โ€œHeโ€™s 80 per cent ready to get back to full training โ€ฆ I think they are being really optimistic, but weโ€™ve been hearing this for a long time about how close Joe is to resuming full training."

โ€œHe missed the start of the season, heโ€™s had an interrupted pre-season so he hasnโ€™t been able to involve himself in any full training, you have another almost seven weeks off and heโ€™s still at that point where he canโ€™t join in full training."

โ€œYouโ€™ve got to start to get really concerned about his ability to be able to get over whatever this injury is, this groin-related injury. Itโ€™s got to be a major concern.

โ€œHe desperately wants to come back and play. I donโ€™t think heโ€™s going to play a lot of footy this year but I think he will play this year."