Galloway supported Sheridan througout the perjury trial. If there is a falling out, this may have something to do with it.
"I'm just hoping that my long record in Glasgow as a Member of Parliament, my reputation as a campaigner, my name - which is relatively well-known in Glasgow - will lift me above the rest, but we'll wait and see."
The former Respect MP said he was upset by the decision to place Mrs Sheridan at the top of Solidarity's Glasgow list.
"I'm, to be honest, a little bit hurt and disappointed by it," he said.
"Tommy Sheridan didn't have a better friend in politics than me, and for 30 years nearly.
Tommy Sheridan Tommy Sheridan is awaiting sentencing for perjury
"To do something like this without even a text message to say he was about to do it, it's a bit dispiriting."
However, he said he still believed Sheridan was innocent and would continue to support him.
"I have stood by Tommy through all those trials and tribulations in my newspaper columns, in my speeches and in person - so I'm not turning my back on Tommy," he said.
"I think he's been badly dealt with.
"But clearly a vote for Gail Sheridan would be vote for Tommy Sheridan - or not - and that's another reason why I probably think it's unwise."
www.bbc.co.uk/news/uk-scotland-glasgow-west-12189562
But I think that Sheridan would beat Galloway in debate. Galloway used to have an interesting radio show, but if you listened long enough, you started to wonder how left he really was and what he really believed.
"First of all I'm against the separation of the country and Tommy's group is for independence," he said.
"I'm a Labour man and they're more of a far-left crew, but most importantly if Gail Sheridan runs as my number two my election campaign will become a referendum about Tommy Sheridan, about his trials and tribulations - and I really don't want that."