Leon Knight today called on the FA to examine the refereeing of Trevor Parkes.

Knight blames the Birmingham official for Albion's shock early exit from the Carling Cup.

Parkes denied goalscoring substitute Jake Robinson two obvious looking penalties in Tuesday's 3-2 defeat afterextra- time at League Two strugglers Shrewsbury.

The man in the middle also changed his mind about a throw-in, which led to two-goal hero Jay Denny equalising for the home side on the stroke of normal time.

It is not the first time Albion have been incensed by Parkes. He sent Knight off at Luton two seasons ago and angered manager Mark McGhee with a couple of decisions at Crewe last season.

Knight has let rip following Parkes' performance at Gay Meadow. He even felt Robinson had a third penalty claim in extra-time.

"When you have a ref who sees things and then doesn't give decisions, because the home fans are getting on his back, then you know there is nothing you can do," he said.

"We had three penalty appeals and he didn't give us one. Some of the decisions he gave were shocking. The FA have got to look at referees like him. He does it to us every single time.

"Somebody has got to have a look at the video and he has got to be embarrassed with himself.

"He just makes me feel sick. I can't stand him. You cannot talk to him, he's so arrogant. He just tells you to shut up and go away and he gives bad decisions.

"The throw they got the goal from, I kicked the ball onto their player's knee and I was off, waiting for Adam El-Abd to take the throw so I could help it on down the line.

"He gave it our way then gave it their way. They took the throw, crossed it and scored."

Robinson was upended inside the area by Shrewsbury's 18-year-old goalkeeper Joe Hart shortly after replacing Colin Kazim-Richards in the 52nd minute.

It was the start of an eventful evening for the young striker. He put the Seagulls 2-1 up with ten minutes left, watched in amazement as Denny struck in the last minute of normal time and first minute of extra-time, then was refused an even more blatant penalty towards the end of the first extra period.

Shrewsbury skipper Kevin Sharp brought him down but Robinson was booked for a supposed dive. Knight said: "Even their players were saying it was the most blatant penalty they had ever seen. Everyone else in the ground could see it, so why couldn't he (Parkes)?

"Even the third one when Jake spun and went over the defender's knee, that was a penalty as well."

It was a case of deja vu for Knight when Parkes cautioned Robinson. "He's known for that. He booked me at Luton when he said I was diving. It wasn't a dive, it was a penalty and I ended up getting sentoff.

I actually asked him what we had to do to get a penalty from him. He just laughed and that sums him up.

"We played well. We didn't look like losing the game, then it was lack of concentration. The ref wasn't helping. I'm not looking for excuses but decisions and goals change games and his decisions were absolutely diabolical."

Parkes and the result soured a proud moment for Knight. He was made captain in the absence of the rested Charlie Oatway.

"The gaffer thought it would be good for me," he said. "Even though I am still only 22 I have been at a few clubs and experienced a few things. I try to give people like Jake and Albert (Jarrett) advice.

"I think the gaffer has seen that. He rested Charlie, so he decided to give me the armband. I was over the moon. I've never captained a side before during my professional career."

Knight started, for the third game running, in the middle of midfield at Shrewsbury rather than up front.

He is happy to play whereever Mark McGhee wants him to as the manager searches for that elusive winning formula at Preston on Saturday.

"I can adapt to any position across midfield or up front," said the former Chelsea forward.

"When he finds a playmaker or player he wants then I'll step out and try to claim my place up front again.

"Until then I'll just play where he wants me to play."