The Irishman, who broke his leg after a horrific Luke Hyam challenge at Ipswich last Saturday, is expected to be out of action for several months and the Austrian is likely to replace him in the starting line up.
But the Austrian insisted he is his own man but is keen to get his name on the scoresheet between now and the end of the season.
He said: “I don't want to be compared with him. I'm a different player. I played on the left wing on Saturday which is different.
“I want to perform well and make more assists. I want to score my first goal. I was really unlucky a couple of times so I want to score.”
Kerschbaumer added: “I visited Judgey in the hospital and spoke to him. He's really positive so he's looking to make the recovery to get back on the pitch. He's a brilliant player so it's been good to train with him.”
The 23-year-old is going into the game full of confidence after an excellent display against Ipswich where he set up the first goal for Sam Saunders.
He explained: “I enjoyed playing on Saturday. We played good football and we're on a winning run.
“The performance was good but I had good performances as well but I didn't score and assist. That's a big impact.”
Brentford triumphed 4-2 at Bristol City in August and, although nothing is really riding on Saturday's game, Kerschbaumer is keen to see another three points on the board.
He added: “We want to win every game. We are mid-table and people can think it's boring but we have a goal to win every game. I think that's the key for us.
“In August, the red card which made it much easier to play. The first 20 minutes was tough against them but then we played well and deserved the win.”