Australian jockey Michael Cahill will return to Hong Kong racing next month as scheduled despite a horror fall in Brisbane on Saturday. Cahill was fortunate to avoid serious injury in the fall at Brisbane's Doomben racecourse, when his ride Centona snapped a leg in the straight and the rider was hurled into the ground. When he attempted to sit upright, Cahill fainted and then remained unconscious for a brief time before being able to regain himself. He eventually was able to walk back to the jockeys' room but was unable to complete his rides. Cahill suffered facial cuts and bruises in the accident but took the normal precaution of a hospital check up. He was contacted yesterday by the Licensing Committee Secretary, stipendiary steward Kim Kelly, who reported that Cahill is expected to resume riding at trackwork in Brisbane today. 'Michael has had precautionary brain and CAT scans to ensure that there is no injury of that kind from his fall and has been given the all-clear to ride,' Kelly said. 'He said he'll ride work [today] and hopes to ride at the races [tomorrow]. He told me he feels fine and doesn't expect it to have any impact whatsoever on his contract in Hong Kong.' Cahill is scheduled to undertake his third stint here, commencing March 16. Meanwhile, jockey Jamie Spencer has decided not to lodge an appeal against the careless riding ban handed out to him at Sunday's Sha Tin meeting and will take his leave of Hong Kong on Thursday. Riding for the second meeting back from a seven-day stretch, Spencer copped another four days for his riding in the early stages of the sixth. 'It would be a little while before the appeal was heard and, if unsuccessful, that would push the penalty over the end of my contract here and into the start of the flat season in England,' Spencer explained yesterday. 'So, I will ride at Happy Valley [tomorrow] and then return home to get ready for that. I hope I can get a couple more winners before I go. There have been some frustrations with the careless riding bans this time but I hope to be back next season and that what I've learned this time will help me then.' Austrian rider, Andreas Suborics was making his return from a careless riding suspension on Sunday when he too was banned for another 4 meetings. Suborics is believed to be considering an appeal but had not lodged any application yesterday. He has until this afternoon to do so. The results of further testing of samples from Gold Cup scratching Cheers Hong Kong are not expected until late in the week. Cheers Hong Kong was scratched on Sunday after the prohibited substance Isosorbide showed up in his routine pre-race urine tests.