The young Scot, City's top scorer last season, does not want to play second fiddle to Chopra and Bothroyd and harm his international chances.
"It looks to me like Chops and Jay will be starting up-front. That is fair enough, but obviously if that happens I'm going to be looking to leave because I've got to think about my place with the Scotland team," McCormack told Wales Online..
"With the World Cup coming up it's a big time for me.
"Everyone thinks I'm a winger because I played there a few times last season and I've played there for Scotland.
"Yet I've only been playing as a winger since Chops arrived. I did not play out there for my previous club.
"I'm a striker. I'm here to score goals. I want to score as many goals as I can.
"But it's football. If I was up against two strikers who weren't very good then it would be different.
"I've got absolutely nothing against Chops and Jay. People are asking have I fallen out with them? But we get on really well. It is just a footballing decision.
"As far as I'm aware there have been no offers for me. Everyone knows I'm supposed to have handed in a transfer request, but it did not really happen.
"I had a phone call with the chairman and someone has leaked that to the media. Things have gone crazy since."
What about links to Celtic and Hull?
"I won't be going to Celtic, but anywhere in England. People are saying Hull are interested, but they have not put a bid in.
"I would be interested in Hull and I'm sure there are a lot of Championship clubs too.
"But Hull have not affected my decision. It is just because I don't see myself playing and I've got to leave.
"The chairman and the manager have said if the right offer comes in I can leave, but I'm a Cardiff player until I'm told differently.
"I'm not going to say I'm happy at Cardiff, but while I am here I am going to give it everything."
McCormack could understand the fans frustration as they gave him a bit of stick at Swindon, although it still upset him.
"I'm upset by the fans' reaction to be honest. There was some abuse," he said. I expected it. I suppose I would be disappointed if I were a fan in that situation."