Celtic striker Leigh Griffiths has warned that he plans to continue trying to "shut people up" after coming off the bench to score last night's winner for Brendan Rodgers' side.

The forward was gutted to lose his Scotland starting berth to Steven Naismith and has found himself benched of late for Celtic.

However, having come on in the latter stages of last night's Europa League campaign to break the stalemate with a header just three minutes from time, Griffiths will look to continue to silence his critics.

"I’ve done it for years," he said. "I don’t know why people keep doubting me and say I can’t score goals in the big occasion.

"I’ve done it in the Champions League, the Europa League, the League Cup, the Scottish Cup and the league.

"There are still people out there doubting me and saying that I can’t do this and that.

"But I keep shutting people up.

"As a forward, it’s always going to be based on scoring goals.

"It is frustrating when people say ‘he can’t do this or that’. I’m judged on how I play on the park and how many goals I score.

"Ultimately, it’s about getting three points foe the team and that’s what I’m good at."

Record summer signing Odsonne Edouard will rival Griffiths for the starting jersey but the striker believes that there might not be an out and out first-choice forward this term.

"I don’t think there is going to be a designated No1 striker," he said.

"I think the manager and will chop and change who he goes with depending on the opponent.

"Regardless of anything, I need to keep working hard in training and do my job so that when I come on off the bench or start games I need to put in performances.

"The manager isn’t having a go at me. He just said that the game is evolving and that strikers are doing more running and racking back.

"I don’t have to prove anything. He sees me day in day out.

"He knows how hard I work on and off the park.

"When I come on, I try and make an impact to keep myself in the starting 11."

The delight which greeted Griffiths' goal dismissed the suggestion that the Europa League is scorned by Celtic and the striker admitted there was a lot of pent-up emotions that came out when the ball hit the back of the net.

"I nearly got crushed at the the far side," he joked. "Listen I was happy to get the win and to get that goal coming off the bench.

"There was a lot of frustration in the celebration. It’s a big weight off my mind.

"People keep doubting me but I like shutting people up."