A contrite Glen Boss has admitted responsibility and been suspended for almost a month over a fall in which fellow jockey Kane Bradley suffered facial injuries in a race at Mornington.

Boss appeared before stewards at a reconvened inquiry on Monday into the reasons for Bradley falling from his mount Rock It Ruby in the race last week.

Boss pleaded guilty to careless riding, admitting it was an outward shift from him aboard Gold Heist approaching the 300m mark which led to Bradley's mount being tightened between another runner, knuckling and then sending Bradley to the turf.

"I'm not going to sit here and make any excuses for my actions on the day," Boss said.

"It's quite evident it's solely my responsibility."

Boss said it was "not a good incident".

"I'm just happy Kane came out of it a lot better than it could have been," the three-time Melbourne Cup winner said.

Bradley was taken to hospital on the day and will require dental surgery.

I pride myself on being a good clean rider," Boss said.

"It's not a good incident and I feel bad about it."

Boss is due to have minor surgery on his left knee on Wednesday which he said would only have kept him out for a week to 10 days.

His 25 meeting suspension ends in time for him to return for Monash Stakes day, July 13, at Caulfield.

Boss seems assured of his first jockeys' title, going into his suspension with a 20 win lead over Luke Nolen in the Melbourne premiership.